Acanthogorgia hirsuta
 - Acanthogorgia hirsuta Gray, 1857 [SYNONYM SPECIES 9840:8R6M5 nidx=null parent=4D459]
 + Acanthogorgia hirsuta Gray, 1857 [ACCEPTED SPECIES 9841:8XQC nidx=null]
Acella (Acella) transsylvanica
 - Acella (Acella) transsylvanica (L. Roth, 1881) [SYNONYM SPECIES 9840:64FFS nidx=null parent=93XN]
 + Acella (Acella) transsylvanica [sic] [SYNONYM SPECIES 9841:9GN2Q nidx=null parent=93XN]
Achatina couroupa
 - Achatina couroupa Lesson, 1831 [SYNONYM SPECIES 9840:7PSBQ nidx=null parent=7RXXP]
 + Achatina couroupa Lesson, 1830 [SYNONYM SPECIES 9841:9GSVT nidx=null parent=7RXXP]
Acodontaster granuliferus
 - Acodontaster granuliferus Koehler, 1920 [SYNONYM SPECIES 9840:9FQ8 nidx=null parent=9FQ7]
 + Acodontaster granuliferus Koehler, 1912 [SYNONYM SPECIES 9841:9GMXQ nidx=null parent=7GJQK]
Acroptychia metablata
 - Acroptychia metablata [SYNONYM SPECIES 9840:9PCZ nidx=null parent=9PD2]
 + Acroptychia metablata [sic] [SYNONYM SPECIES 9841:9GN2S nidx=null parent=9PD2]
Actinopsis
 - Actinopsis [ACCEPTED GENUS 9840:627TB nidx=null]
 + Actinopsis Dana, 1856 [ACCEPTED GENUS 9841:9GLZW nidx=null]
Agrilinus ater
 - Agrilinus ater (De Geer, 1774) [ACCEPTED SPECIES 9840:B3NQ nidx=null]
 + Agrilinus ater (Degeer, 1774) [ACCEPTED SPECIES 9841:9GN2H nidx=null]
Alanlordella
 - Alanlordella BouDagher-Fadel, 1995 [ACCEPTED GENUS 9840:7ZLFL nidx=null]
 + Alanlordella BouDagher-Fadel, 1996 [ACCEPTED GENUS 9841:9GM2B nidx=null]
Alanlordella banneri
 - Alanlordella banneri BouDagher-Fadel, 1995 [ACCEPTED SPECIES 9840:7ZXVR nidx=null]
 + Alanlordella banneri BouDagher-Fadel, 1996 [ACCEPTED SPECIES 9841:9GN33 nidx=null]
Allopotamon
 - Allopotamon P.K.L. Ng, 1988 [ACCEPTED GENUS 9840:7NNP8 nidx=null]
 + Allopotamon Ng, 1988 [ACCEPTED GENUS 9841:9GLJ5 nidx=null]
Amara (Curtonotus)
 - Amara (Curtonotus) Stephens, 1827 [ACCEPTED SUBGENUS 9840:8VS7M nidx=null]
 + Amara (Curtonotus) Stephens, 1827 [ACCEPTED SUBGENUS 9841:9GKYB nidx=null]
Amblema plicata quintardi
 - Amblema plicata quintardi (Cragin, 1887) [SYNONYM SUBSPECIES 9840:5FJW2 nidx=null parent=CL96]
 + Amblema plicata quintardi [sic] [SYNONYM SUBSPECIES 9841:9GRYJ nidx=null parent=CL96]
Amblychilepas crucis
 - Amblychilepas crucis (Beddome, 1882) [ACCEPTED SPECIES 9840:CLK5 nidx=null]
 + Amblychilepas crucis (C. E. Beddome, 1883) [ACCEPTED SPECIES 9841:9GN3N nidx=null]
Ameritella agilis
 - Ameritella agilis (Stimpson, 1857) [ACCEPTED SPECIES 9840:CRFR nidx=null]
 + Ameritella agilis (W. Stimpson, 1858) [ACCEPTED SPECIES 9841:9GN3S nidx=null]
Amnicola (Amnicola) dubrueilliana
 - Amnicola (Amnicola) dubrueilliana Paladilhe, 1873 [SYNONYM SPECIES 9840:66DWP nidx=null parent=3N5Z7]
 + Amnicola (Amnicola) dubrueilliana [sic] [SYNONYM SPECIES 9841:9GN3T nidx=null parent=3N5Z7]
Amphimelania patula taurostricta
 - Amphimelania patula taurostricta (Sacco, 1895) [SYNONYM SUBSPECIES 9840:5FKLG nidx=null parent=7H83P]
 + Amphimelania patula taurostricta [sic] [SYNONYM SUBSPECIES 9841:9GRYL nidx=null parent=7H83P]
Amphimelania pecchioli
 - Amphimelania pecchioli (M. Hörnes, 1856) [SYNONYM SPECIES 9840:D3PW nidx=null parent=3M752]
 + Amphimelania pecchioli [sic] [SYNONYM SPECIES 9841:9GN46 nidx=null parent=3M752]
Amphithalamus (Amphithalamus) obesus
 - Amphithalamus (Amphithalamus) obesus H. Adams, 1865 [SYNONYM SPECIES 9840:D65W nidx=null parent=D673]
 + Amphithalamus (Amphithalamus) obesus H. Adams, 1866 [SYNONYM SPECIES 9841:9GN4G nidx=null parent=D673]
Ampullaria fasciata
 - Ampullaria fasciata Lamarck, 1822 [AMBIGUOUS_SYNONYM SPECIES 9840:7Q2W6 nidx=null parent=4HSCW]
 + Ampullaria fasciata Lamarck, 1816 [SYNONYM SPECIES 9841:9GN4J nidx=null parent=4HSCW]
Amygdalum politum
 - Amygdalum politum (A. E. Verrill & S. Smith [in Verrill] , 1880) [ACCEPTED SPECIES 9840:8SVXL nidx=null]
 + Amygdalum politum (A. E. Verrill & S. Smith, 1880) [ACCEPTED SPECIES 9841:D94J nidx=null]
Angulus agilis
 - Angulus agilis (Stimpson, 1857) [SYNONYM SPECIES 9840:672JW nidx=null parent=CRFR]
 + Angulus agilis (W. Stimpson, 1858) [SYNONYM SPECIES 9841:9GN6F nidx=null parent=9GN3S]
Aniptumnus
 - Aniptumnus P.K.L. Ng, 2002 [ACCEPTED GENUS 9840:7NPWK nidx=null]
 + Aniptumnus Ng, 2002 [ACCEPTED GENUS 9841:9GLML nidx=null]
Anisodesmus
 - Anisodesmus Cook, 1896 [ACCEPTED GENUS 9840:7NPX6 nidx=null]
 - Anisodesmus Cook, 1896 [PROVISIONALLY_ACCEPTED GENUS 9840:87DHS nidx=null]
 + Anisodesmus Cook, 1895 [ACCEPTED GENUS 9841:9GLMP nidx=null]
Anisus (Gyraulus) bondartschuki
 - Anisus (Gyraulus) bondartschuki Prysjazhnjuk, 1974 [SYNONYM SPECIES 9840:5V59V nidx=null parent=3HYGG]
 + Anisus (Gyraulus) bondartschuki [sic] [SYNONYM SPECIES 9841:9GN6K nidx=null parent=3HYGG]
Anisus (Gyraulus) solenoides
 - Anisus (Gyraulus) solenoides (Lörenthey, 1902) [SYNONYM SPECIES 9840:674XV nidx=null parent=3HYNY]
 + Anisus (Gyraulus) solenoides [sic] [SYNONYM SPECIES 9841:9GN6L nidx=null parent=3HYNY]
Anisus dupuyanus
 - Anisus dupuyanus Noulet, 1854 [SYNONYM SPECIES 9840:5V4YB nidx=null parent=674YD]
 + Anisus dupuyanus [sic] [SYNONYM SPECIES 9841:9GN6J nidx=null parent=674YD]
Anomalocardia kockii
 - Anomalocardia kockii [SYNONYM SPECIES 9840:676T6 nidx=null parent=3CCSL]
 + Anomalocardia kockii [sic] [SYNONYM SPECIES 9841:9GN6T nidx=null parent=3CCSL]
Anomalocardia malonei
 - Anomalocardia malonei Fischer-Piette, 1968 [SYNONYM SPECIES 9840:5V6SR nidx=null parent=7CBBM]
 + Anomalocardia malonei Vanatta, 1901 [SYNONYM SPECIES 9841:9GN6V nidx=null parent=7CBBM]
Anomalocardia puella
 - Anomalocardia puella (L. Pfeiffer in Philippi, 1846) [ACCEPTED SPECIES 9840:67753 nidx=null]
 + Anomalocardia puella (Philippi, 1846) [ACCEPTED SPECIES 9841:9GN6W nidx=null]
Apathya cappadocica urmiana
 - Apathya cappadocica urmiana (Lantz & Suchow, 1934) [ACCEPTED SUBSPECIES 9840:9F2QY nidx=null]
 + Apathya cappadocica urmiana (Lantz & Suchow, 1934) [ACCEPTED SUBSPECIES 9841:9GT4H nidx=null]
 + Apathya cappadocica urmiana Lantz & Suchow, 1934 [AMBIGUOUS_SYNONYM INFRASPECIFIC_NAME 9841:9GT4J nidx=null parent=F8SX]
Apiotrigonia flexicostata
 - Apiotrigonia flexicostata (Burwash, 1913) [ACCEPTED SPECIES 9840:8M54N nidx=null]
 + Apiotrigonia flexicostata (Burwash, 1914) [ACCEPTED SPECIES 9841:9GSXW nidx=null]
Aplysia guttata
 - Aplysia guttata M. Sars, 1840 [SYNONYM SPECIES 9840:9G457 nidx=null parent=67NTY]
 + Aplysia guttata M. Sars, 1839 [SYNONYM SPECIES 9841:9GN75 nidx=null parent=67NTY]
Araeolaimus dubius
 - Araeolaimus dubius [SYNONYM SPECIES 9840:8G3WL nidx=null parent=8G3WK]
 + Araeolaimus dubius Allgen, 1929 [SYNONYM SPECIES 9841:9GN7F nidx=null parent=8G3WK]
Architectonicoidea
 - Architectonicoidea Gray, 1850 [ACCEPTED SUPERFAMILY 9840:8V6KL nidx=null]
 + Architectonicoidea J. E. Gray, 1850 [ACCEPTED SUPERFAMILY 9841:4TR nidx=null]
Arcotheres placunicola
 - Arcotheres placunicola P.K.L. Ng, 2018 [ACCEPTED SPECIES 9840:92TH8 nidx=null]
 + Arcotheres placunicola Ng, 2018 [ACCEPTED SPECIES 9841:9GN7M nidx=null]
Arescon dimidiata
 - Arescon dimidiata (Curtis, 1832) [ACCEPTED SPECIES 9840:8YV82 nidx=null]
 + Arescon dimidiata (Curtis, 1832) [ACCEPTED SPECIES 9841:9GN9X nidx=null]
Arion empiricorum
 - Arion empiricorum J. Férussac, 1819 [SYNONYM SPECIES 9840:67R8T nidx=null parent=5W2WT]
 + Arion empiricorum A. Férussac, 1819 [SYNONYM SPECIES 9841:9GN7Q nidx=null parent=5W2WT]
Armiger crista
 - Armiger crista (Linnaeus, 1758) [SYNONYM SPECIES 9840:8P45T nidx=null parent=8P5J8]
 + Armiger crista (Linnaeus, 1758) [ACCEPTED SPECIES 9841:GSG2 nidx=null]
Asaphis violaceus
 - Asaphis violaceus [SYNONYM SPECIES 9840:H4FG nidx=null parent=H4FH]
 + Asaphis violaceus [sic] [SYNONYM SPECIES 9841:9GN87 nidx=null parent=H4FH]
Asiatotrigonia
 - Asiatotrigonia Cox, 1952 [ACCEPTED GENUS 9840:7NRDB nidx=null]
 + Asiatotrigonia L. R. Cox, 1952 [ACCEPTED GENUS 9841:9GM3Z nidx=null]
Asperitas sparsa
 - Asperitas sparsa (Mousson, 1849) [ACCEPTED SPECIES 9840:5W5MP nidx=null]
 + Asperitas sparsa (Mousson, 1857) [ACCEPTED SPECIES 9841:9GN8H nidx=null]
Aulacomya ater ater
 - Aulacomya ater ater [SYNONYM SUBSPECIES 9840:7JDMR nidx=null parent=JQZD]
 + Aulacomya ater ater [sic] [SYNONYM SUBSPECIES 9841:9GRYX nidx=null parent=JQZD]
Avicardium mainacaricum
 - Avicardium mainacaricum (Uspenskaja, 1931) [ACCEPTED SPECIES 9840:8798C nidx=null]
 + Avicardium mainacaricum (Andrusov, 1905) [ACCEPTED SPECIES 9841:9GSZB nidx=null]
Baccazia
 - Baccazia P.K.L. Ng, 2018 [ACCEPTED GENUS 9840:847PT nidx=null]
 + Baccazia Ng, 2018 [ACCEPTED GENUS 9841:9GM4F nidx=null]
Baeturia reijnhoudti
 - Baeturia reijnhoudti Boer, 1989 [ACCEPTED SPECIES 9840:KD8S nidx=null]
 + Baeturia reijnhoudti Boer, 1989 [ACCEPTED SPECIES 9841:9GSZH nidx=null]
Bakousa
 - Bakousa P.K.L. Ng, 1995 [ACCEPTED GENUS 9840:7NSF2 nidx=null]
 + Bakousa Ng, 1995 [ACCEPTED GENUS 9841:9GLSM nidx=null]
Baseodiscus mexicanum
 - Baseodiscus mexicanum ? [SYNONYM SPECIES 9840:9G482 nidx=null parent=84XNX]
 + Baseodiscus mexicanum ? [SYNONYM SPECIES 9841:9GNB8 nidx=null parent=84XNX]
Baseodiscus ophiocephalus
 - Baseodiscus ophiocephalus ? [SYNONYM SPECIES 9840:9G483 nidx=null parent=39JVV]
 + Baseodiscus ophiocephalus ? [SYNONYM SPECIES 9841:9GNB9 nidx=null parent=39JVV]
Bathyarca petunculoides
 - Bathyarca petunculoides [SYNONYM SPECIES 9840:KWJ2 nidx=null parent=KWHY]
 + Bathyarca petunculoides [sic] [SYNONYM SPECIES 9841:9GNBB nidx=null parent=KWHY]
Belgrandia
 - Belgrandia Bourguignat, 1870 [ACCEPTED GENUS 9840:7NSWW nidx=null]
 + Belgrandia Bourguignat, 1869 [ACCEPTED GENUS 9841:9GLT6 nidx=null]
Belgrandia archaea
 - Belgrandia archaea Bourguignat, 1870 [SYNONYM SPECIES 9840:8M42Z nidx=null parent=8M3R9]
 + Belgrandia archaea Bourguignat, 1869 [SYNONYM SPECIES 9841:9GSZL nidx=null parent=9GT29]
Belgrandia deshayesiana
 - Belgrandia deshayesiana Bourguignat, 1870 [SYNONYM SPECIES 9840:8M36M nidx=null parent=8M4NW]
 + Belgrandia deshayesiana Bourguignat, 1869 [SYNONYM SPECIES 9841:9GSZM nidx=null parent=9GT2B]
Belgrandia desnoyersi
 - Belgrandia desnoyersi Bourguignat, 1870 [SYNONYM SPECIES 9840:8M4BJ nidx=null parent=8M4FB]
 + Belgrandia desnoyersi Bourguignat, 1869 [SYNONYM SPECIES 9841:9GSZN nidx=null parent=9GT2C]
Belgrandia dumenisliana
 - Belgrandia dumenisliana Bourguignat, 1870 [SYNONYM SPECIES 9840:8M48Z nidx=null parent=8M3PV]
 + Belgrandia dumenisliana Bourguignat, 1869 [SYNONYM SPECIES 9841:9GSZP nidx=null parent=9GT2D]
Belgrandia edwardsiana
 - Belgrandia edwardsiana Bourguignat, 1870 [SYNONYM SPECIES 9840:8M44M nidx=null parent=8M4MC]
 + Belgrandia edwardsiana Bourguignat, 1869 [SYNONYM SPECIES 9841:9GSZQ nidx=null parent=9GT2F]
Belgrandia joinvillensis
 - Belgrandia joinvillensis Bourguignat, 1870 [SYNONYM SPECIES 9840:8M3FX nidx=null parent=8M467]
 + Belgrandia joinvillensis Bourguignat, 1869 [SYNONYM SPECIES 9841:9GSZR nidx=null parent=9GT2G]
Belgrandia lartetiana
 - Belgrandia lartetiana Bourguignat, 1870 [SYNONYM SPECIES 9840:8M4Z3 nidx=null parent=8M3HP]
 + Belgrandia lartetiana Bourguignat, 1869 [SYNONYM SPECIES 9841:9GSZS nidx=null parent=9GT2H]
Berghia creutzbergi
 - Berghia creutzbergi Er. Marcus & Ev. Marcus, 1970 [ACCEPTED SPECIES 9840:LKTV nidx=null]
 + Berghia creutzbergi Er. Marcus & Ev. Marcus, 1971 [ACCEPTED SPECIES 9841:9GNBZ nidx=null]
Bithynia bengestensis
 - Bithynia bengestensis Fontannes, 1887 [SYNONYM SPECIES 9840:5WKDP nidx=null parent=7CZZX]
 + Bithynia bengestensis [sic] [SYNONYM SPECIES 9841:9GNC4 nidx=null parent=7CZZX]
Bithynia leachi
 - Bithynia leachi (Sheppard, 1823) [SYNONYM SPECIES 9840:LXFT nidx=null parent=68KDH]
 + Bithynia leachi [sic] [SYNONYM SPECIES 9841:9GNC6 nidx=null parent=68KDH]
Blefuscuiana speetonensis subsp. tunisiensis
 - Blefuscuiana speetonensis subsp. tunisiensis BouDagher-Fadel, 1995 [SYNONYM SUBSPECIES 9840:83WJW nidx=null parent=82QNK]
 + Blefuscuiana speetonensis subsp. tunisiensis BouDagher-Fadel, 1996 [SYNONYM SUBSPECIES 9841:9GRYY nidx=null parent=82QNK]
Blowiella moulladei
 - Blowiella moulladei BouDagher-Fadel, 1995 [ACCEPTED SPECIES 9840:82454 nidx=null]
 + Blowiella moulladei BouDagher-Fadel, 1996 [ACCEPTED SPECIES 9841:9GNCC nidx=null]
Bolinopsis microptera
 - Bolinopsis microptera (A. Agassiz, 1865) [SYNONYM SPECIES 9840:8R76G nidx=null parent=MDD9]
 + Bolinopsis microptera (A. Agassiz, 1865) [ACCEPTED SPECIES 9841:68N89 nidx=null]
Bolivina prion
 - Bolivina prion Lindenberg, 1965 [ACCEPTED SPECIES 9840:9G48M nidx=null]
 + Bolivina prion Lindenberg, 1965 [ACCEPTED SPECIES 9841:9GNCF nidx=null]
Brotia vasarhelyi
 - Brotia vasarhelyi (Hantken, 1887) [SYNONYM SPECIES 9840:68QXH nidx=null parent=7CD3H]
 + Brotia vasarhelyi [sic] [SYNONYM SPECIES 9841:9GNCY nidx=null parent=7CD3H]
Bucephalus syndosmyae
 - Bucephalus syndosmyae Lebour, 1912 [ACCEPTED SPECIES 9840:NM9F nidx=null]
 + Bucephalus syndosmyae Lebour, 1911 [ACCEPTED SPECIES 9841:9GND4 nidx=null]
Bulimus (Plectostylus) chilensis
 - Bulimus (Plectostylus) chilensis (Lesson, 1831) [SYNONYM SPECIES 9840:8VPQF nidx=null parent=7SRDF]
 + Bulimus (Plectostylus) chilensis (Lesson, 1830) [SYNONYM SPECIES 9841:9GNDB nidx=null parent=7SRDF]
Bulimus (Tylopoma) bengestensis
 - Bulimus (Tylopoma) bengestensis (Fontannes, 1887) [SYNONYM SPECIES 9840:NT7H nidx=null parent=7CZZX]
 + Bulimus (Tylopoma) bengestensis [sic] [SYNONYM SPECIES 9841:9GND8 nidx=null parent=7CZZX]
Bulimus almerae
 - Bulimus almerae (Almera, 1894) [SYNONYM SPECIES 9840:NT8F nidx=null parent=LXDZ]
 + Bulimus almerae [sic] [SYNONYM SPECIES 9841:9GND9 nidx=null parent=LXDZ]
Bulimus chilensis
 - Bulimus chilensis Lesson, 1831 [AMBIGUOUS_SYNONYM SPECIES 9840:7QG4P nidx=null parent=7SRDF]
 + Bulimus chilensis Lesson, 1830 [SYNONYM SPECIES 9841:9GNDC nidx=null parent=7SRDF]
Bulimus submariei var. abbreviata
 - Bulimus submariei var. abbreviata L. Pfeiffer, 1877 [SYNONYM VARIETY 9840:7V59F nidx=null parent=7TZQB]
 + Bulimus submariei var. abbreviata L. Pfeiffer, 1876 [SYNONYM VARIETY 9841:9GT7R nidx=null parent=7TZQB]
 + Bulimus submariei var. abbreviata Souverbie, 1869 [SYNONYM VARIETY 9841:9GT7S nidx=null parent=7TZQB]
Bulimus vukotinovici bengestensis
 - Bulimus vukotinovici bengestensis (Fontannes, 1887) [SYNONYM SUBSPECIES 9840:5G3CF nidx=null parent=7CZZX]
 + Bulimus vukotinovici bengestensis [sic] [SYNONYM SUBSPECIES 9841:9GRZG nidx=null parent=7CZZX]
Bulla solida
 - Bulla solida A. Adams in Sowerby, 1868 [AMBIGUOUS_SYNONYM SPECIES 9840:NTWM nidx=null parent=68S5S]
 + Bulla solida Sowerby, 1868 [SYNONYM SPECIES 9841:9GNFF nidx=null parent=68S5S]
Bythinella archaea
 - Bythinella archaea (Bourguignat, 1870) [ACCEPTED SPECIES 9840:8M3R9 nidx=null]
 + Bythinella archaea (Bourguignat, 1869) [ACCEPTED SPECIES 9841:9GT29 nidx=null]
Bythinella deshayesiana
 - Bythinella deshayesiana (Bourguignat, 1870) [ACCEPTED SPECIES 9840:8M4NW nidx=null]
 + Bythinella deshayesiana (Bourguignat, 1869) [ACCEPTED SPECIES 9841:9GT2B nidx=null]
Bythinella desnoyersi
 - Bythinella desnoyersi (Bourguignat, 1870) [ACCEPTED SPECIES 9840:8M4FB nidx=null]
 + Bythinella desnoyersi (Bourguignat, 1869) [ACCEPTED SPECIES 9841:9GT2C nidx=null]
Bythinella dumenisliana
 - Bythinella dumenisliana (Bourguignat, 1870) [ACCEPTED SPECIES 9840:8M3PV nidx=null]
 + Bythinella dumenisliana (Bourguignat, 1869) [ACCEPTED SPECIES 9841:9GT2D nidx=null]
Bythinella edwardsiana
 - Bythinella edwardsiana (Bourguignat, 1870) [ACCEPTED SPECIES 9840:8M4MC nidx=null]
 + Bythinella edwardsiana (Bourguignat, 1869) [ACCEPTED SPECIES 9841:9GT2F nidx=null]
Bythinella joinvillensis
 - Bythinella joinvillensis (Bourguignat, 1870) [ACCEPTED SPECIES 9840:8M467 nidx=null]
 + Bythinella joinvillensis (Bourguignat, 1869) [ACCEPTED SPECIES 9841:9GT2G nidx=null]
Bythinella lartetiana
 - Bythinella lartetiana (Bourguignat, 1870) [ACCEPTED SPECIES 9840:8M3HP nidx=null]
 + Bythinella lartetiana (Bourguignat, 1869) [ACCEPTED SPECIES 9841:9GT2H nidx=null]
Bythinella lii
 - Bythinella lii Kang, 1986 [ACCEPTED SPECIES 9840:7QHNB nidx=null]
 + Bythinella lii Z.-B. Kang, 1985 [SYNONYM SPECIES 9841:9GT2J nidx=null parent=6GK6B]
Bythiospeum pellucidum
 - Bythiospeum pellucidum (Seckendorf, 1846) [SYNONYM SPECIES 9840:7QHT2 nidx=null parent=P3DB]
 + Bythiospeum pellucidum (Seckendorf, 1846) [ACCEPTED SPECIES 9841:P3FG nidx=null]
Bythiospeum puerkhaueri
 - Bythiospeum puerkhaueri (Clessin, 1877) [SYNONYM SPECIES 9840:7QHT3 nidx=null parent=P3DB]
 + Bythiospeum puerkhaueri (Clessin, 1877) [ACCEPTED SPECIES 9841:P3FN nidx=null]
Bythiospeum putei
 - Bythiospeum putei (Geyer, 1904) [SYNONYM SPECIES 9840:7QHT4 nidx=null parent=P3DB]
 + Bythiospeum putei (Geyer, 1904) [ACCEPTED SPECIES 9841:P3FP nidx=null]
Bythiospeum sandbergeri
 - Bythiospeum sandbergeri (Flach, 1886) [SYNONYM SPECIES 9840:7QHT6 nidx=null parent=P3DB]
 + Bythiospeum sandbergeri (Flach, 1886) [ACCEPTED SPECIES 9841:P3FV nidx=null]
Bythiospeum saxigenum
 - Bythiospeum saxigenum (Geyer, 1905) [SYNONYM SPECIES 9840:7QHT8 nidx=null parent=P3DB]
 + Bythiospeum saxigenum (Geyer, 1905) [ACCEPTED SPECIES 9841:P3FX nidx=null]
Bythiospeum senefelderi
 - Bythiospeum senefelderi (Geyer, 1907) [SYNONYM SPECIES 9840:7QHT9 nidx=null parent=P3DB]
 + Bythiospeum senefelderi (Geyer, 1907) [ACCEPTED SPECIES 9841:P3FZ nidx=null]
Bythiospeum suevicum
 - Bythiospeum suevicum (Geyer, 1905) [SYNONYM SPECIES 9840:7QHTB nidx=null parent=P3DB]
 + Bythiospeum suevicum (Geyer, 1905) [ACCEPTED SPECIES 9841:P3G6 nidx=null]
Bythiospeum taxisi
 - Bythiospeum taxisi (Geyer, 1907) [SYNONYM SPECIES 9840:7QHTC nidx=null parent=P3DB]
 + Bythiospeum taxisi (Geyer, 1907) [ACCEPTED SPECIES 9841:P3G8 nidx=null]
Bythiospeum turritum
 - Bythiospeum turritum (Clessin, 1877) [SYNONYM SPECIES 9840:7QHTD nidx=null parent=P3DB]
 + Bythiospeum turritum (Clessin, 1877) [ACCEPTED SPECIES 9841:P3GD nidx=null]
Bythiospeum waegelei
 - Bythiospeum waegelei (Hässlein, 1938) [SYNONYM SPECIES 9840:7QHTF nidx=null parent=P3DB]
 + Bythiospeum waegelei (Hässlein, 1938) [ACCEPTED SPECIES 9841:P3GG nidx=null]
Calappa karenae
 - Calappa karenae PKL Ng & JYC Lai, 2012 [ACCEPTED SPECIES 9840:7T362 nidx=null]
 + Calappa karenae Ng & Lai, 2012 [ACCEPTED SPECIES 9841:PFRH nidx=null]
Calappa webbiana
 - Calappa webbiana Risso in Holthuis, 1977 [SYNONYM SPECIES 9840:PFSX nidx=null parent=PFSC]
 + Calappa webbiana Holthuis, 1977 [SYNONYM SPECIES 9841:9GNFW nidx=null parent=PFSC]
Caligus bonito
 - Caligus bonito Wilson C.B., 1905 [SYNONYM SPECIES 9840:7RSCM nidx=null parent=7ZGX3]
 + Caligus bonito Wilson C.B., 1905 [ACCEPTED SPECIES 9841:68TXS nidx=null]
Calipyrgula circumstriata
 - Calipyrgula circumstriata Leonard & Ho, 1960 [SYNONYM SPECIES 9840:PKSK nidx=null parent=59F6R]
 + Calipyrgula circumstriata A. B. Leonard & Ho, 1960 [SYNONYM SPECIES 9841:9GNFZ nidx=null parent=9GRRL]
Callista kingii
 - Callista kingii (Gray in P. P. King, 1827) [ACCEPTED SPECIES 9840:PTLQ nidx=null]
 + Callista kingii (J. E. Gray, 1826) [ACCEPTED SPECIES 9841:9GNG2 nidx=null]
Calpurnus lacteus semistriatus
 - Calpurnus lacteus semistriatus Schilder, 1941 [SYNONYM SUBSPECIES 9840:7TRGN nidx=null parent=77Y82]
 + Calpurnus lacteus semistriatus (Pease, 1863) [SYNONYM SUBSPECIES 9841:9GRZH nidx=null parent=77Y82]
Cancer luzonensis
 - Cancer luzonensis T. Sakai, 1983 [SYNONYM SPECIES 9840:84GQZ nidx=null parent=6WWKL]
 + Cancer luzonensis Sakai, 1983 [SYNONYM SPECIES 9841:QKCX nidx=null parent=6WWKL]
Cancer nadaensis
 - Cancer nadaensis T. Sakai, 1969 [SYNONYM SPECIES 9840:84CZD nidx=null parent=6X8KL]
 + Cancer nadaensis Sakai, 1969 [SYNONYM SPECIES 9841:QKDV nidx=null parent=6X8KL]
Cancrocaeca
 - Cancrocaeca P.K.L. Ng, 1991 [ACCEPTED GENUS 9840:7NVVJ nidx=null]
 + Cancrocaeca Ng, 1991 [ACCEPTED GENUS 9841:9GLWG nidx=null]
Caracanthus unipinna
 - Caracanthus unipinna (Gray, 1831) [ACCEPTED SPECIES 9840:9G4BR nidx=null]
 + Caracanthus unipinna (Gray, 1831) [ACCEPTED SPECIES 9841:9GNGD nidx=null]
Caracolus bicolor
 - Caracolus bicolor Lamarck, 1816 [ACCEPTED SPECIES 9840:QZSN nidx=null]
 + Caracolus bicolor Lamarck, 1822 [SYNONYM SPECIES 9841:9GNGG nidx=null parent=4BV9H]
Cardium aculcatum
 - Cardium aculcatum Aradas & Benoit, 1870 [SYNONYM SPECIES 9840:R65Z nidx=null parent=64CTR]
 + Cardium aculcatum Aradas & Benoit, 1872 [SYNONYM SPECIES 9841:9GNGK nidx=null parent=64CTR]
Caspia knipowitchi
 - Caspia knipowitchi Makarov, 1938 [SYNONYM SPECIES 9840:7QKTB nidx=null parent=7QPHJ]
 + Caspia knipowitchi [sic] [SYNONYM SPECIES 9841:9GNGR nidx=null parent=7QPHJ]
Catalaphyllia plicata
 - Catalaphyllia plicata sensu Wells, 1971 [SYNONYM SPECIES 9840:RRVC nidx=null parent=5XDVF]
 + Catalaphyllia plicata (Milne Edwards & Haime, 1848) [SYNONYM SPECIES 9841:9GNGZ nidx=null parent=5XDVF]
Cebudonus
 - Cebudonus P.K.L. Ng, 2014 [ACCEPTED GENUS 9840:7NWMK nidx=null]
 + Cebudonus Ng, 2014 [ACCEPTED GENUS 9841:9GM6K nidx=null]
Cepaea christoli
 - Cepaea christoli (Matheron, 1843) [SYNONYM SPECIES 9840:7QL7G nidx=null parent=7S3VK]
 + Cepaea christoli [sic] [SYNONYM SPECIES 9841:9GNHD nidx=null parent=7S3VK]
Cephalothrips traegardhi
 - Cephalothrips traegardhi Trybom, 1913 [SYNONYM SPECIES 9840:5XK49 nidx=null parent=3JPSB]
 + Cephalothrips traegardhi Trybom, 1912 [SYNONYM SPECIES 9841:9GT3G nidx=null parent=3JPSB]
Ceratonereis (Composetia) hircinicola
 - Ceratonereis (Composetia) hircinicola (Eisig, 1870) [ACCEPTED SPECIES 9840:SNJN nidx=null]
 + Ceratonereis (Composetia) hircinicola (Eisig, 1869) [SYNONYM SPECIES 9841:9GNHJ nidx=null parent=9GXLY]
Ceratonereis hircinicola
 - Ceratonereis hircinicola (Eisig, 1870) [SYNONYM SPECIES 9840:SNLB nidx=null parent=SNJN]
 + Ceratonereis hircinicola (Eisig, 1869) [SYNONYM SPECIES 9841:9GNHH nidx=null parent=9GXLY]
Ceratonereis obockensis
 - Ceratonereis obockensis Gravier, 1902 [ACCEPTED SPECIES 9840:SNLT nidx=null]
 + Ceratonereis obockensis Gravier, 1900 [SYNONYM SPECIES 9841:9GNHK nidx=null parent=9GXLQ]
Cercaria lophocerca
 - Cercaria lophocerca Lebour, 1907 [SYNONYM SPECIES 9840:SQYD nidx=null parent=ZWYX]
 + Cercaria lophocerca de Filippi, 1857 [SYNONYM SPECIES 9841:9GNHP nidx=null parent=ZWYX]
Cercaria patellae
 - Cercaria patellae Lebour, 1912 [SYNONYM SPECIES 9840:847C5 nidx=null parent=6DWS8]
 + Cercaria patellae Lebour, 1911 [SYNONYM SPECIES 9841:9GNHQ nidx=null parent=6DWS8]
Cerithiopsis barleii
 - Cerithiopsis barleii [SYNONYM SPECIES 9840:SYRZ nidx=null parent=SYS2]
 + Cerithiopsis barleii [sic] [SYNONYM SPECIES 9841:9GNHR nidx=null parent=SYS2]
Cerithium lutuosum
 - Cerithium lutuosum [SYNONYM SPECIES 9840:7QLTZ nidx=null parent=69LFB]
 + Cerithium lutuosum [sic] [SYNONYM SPECIES 9841:9GNHV nidx=null parent=69LFB]
Cerithium mitriforme
 - Cerithium mitriforme [sic] [SYNONYM SPECIES 9840:69LFJ nidx=null parent=SZ7L]
 + Cerithium mitriforme W. Wood, 1828 [SYNONYM SPECIES 9841:9GNHW nidx=null parent=SZ7L]
Cerithium rissoidae
 - Cerithium rissoidae [SYNONYM SPECIES 9840:8V78Z nidx=null parent=69LFB]
 + Cerithium rissoidae [sic] [SYNONYM SPECIES 9841:9GNHX nidx=null parent=69LFB]
Cerithium rissoiide
 - Cerithium rissoiide [SYNONYM SPECIES 9840:8TNCD nidx=null parent=69LFB]
 + Cerithium rissoiide [sic] [SYNONYM SPECIES 9841:9GNHY nidx=null parent=69LFB]
Cerithium truncatum
 - Cerithium truncatum Griffith & Pidgeon, 1834 [SYNONYM SPECIES 9840:84W9Y nidx=null parent=SYL9]
 + Cerithium truncatum Gray, 1834 [SYNONYM SPECIES 9841:9GNHZ nidx=null parent=SYL9]
Chaetoceros curvisetus
 - Chaetoceros curvisetus Cleve [ACCEPTED SPECIES 9840:TB3S nidx=null]
 + Chaetoceros curvisetus Cleve [ACCEPTED SPECIES 9841:9GNJC nidx=null]
Chriolepis minutillus
 - Chriolepis minutillus Gilbert, 1892 [ACCEPTED SPECIES 9840:9G4DX nidx=null]
 + Chriolepis minutillus Gilbert, 1892 [ACCEPTED SPECIES 9841:9GNJT nidx=null]
Chromis retrofasciata
 - Chromis retrofasciata Weber, 1913 [ACCEPTED SPECIES 9840:9G4F6 nidx=null]
 + Chromis retrofasciata Weber, 1913 [ACCEPTED SPECIES 9841:9GNK3 nidx=null]
Chrysallida pura
 - Chrysallida pura (Saurin, 1962) [ACCEPTED SPECIES 9840:5YK22 nidx=null]
 + Chrysallida pura A. Adams, 1861 [SYNONYM SPECIES 9841:9GNK9 nidx=null parent=4QTVK]
Circulus philippinensis
 - Circulus philippinensis Rubio & Rolán, 2022 [ACCEPTED SPECIES 9840:9CCLD nidx=null]
 + Circulus philippinensis (Shuto, 1969) [ACCEPTED SPECIES 9841:9GWVY nidx=null]
Cirrhatulus auricapillus
 - Cirrhatulus auricapillus Ehrenberg in Grube, 1870 [ACCEPTED SPECIES 9840:VGN2 nidx=null]
 + Cirrhatulus auricapillus Grube, 1870 [ACCEPTED SPECIES 9841:9GNKK nidx=null]
Cistopus taiwanicus
 - Cistopus taiwanicus Liao & Lu, 2009 [ACCEPTED SPECIES 9840:VLG4 nidx=null]
 + Cistopus taiwanicus J. X. Liao & C. C. Lu, 2009 [ACCEPTED SPECIES 9841:9GNKP nidx=null]
Clanculus (Clanculopsis) granifer
 - Clanculus (Clanculopsis) granifer (Doderlein, 1888) [SYNONYM SPECIES 9840:7QPFS nidx=null parent=7QPGF]
 + Clanculus (Clanculopsis) granifer (Pantanelli, 1888) [SYNONYM SPECIES 9841:9GT4W nidx=null parent=9GT4X]
Clanculus granifer
 - Clanculus granifer (Doderlein in Pantanelli, 1888) [ACCEPTED SPECIES 9840:7QPGF nidx=null]
 + Clanculus granifer (Pantanelli, 1888) [ACCEPTED SPECIES 9841:9GT4X nidx=null]
Clanculus spadiceus
 - Clanculus spadiceus (Philippi, 1848) [ACCEPTED SPECIES 9840:VQT8 nidx=null]
 + Clanculus spadiceus (Philippi, 1849) [ACCEPTED SPECIES 9841:9GNKR nidx=null]
Coccus strobus
 - Coccus strobus Hartig, 1839 [SYNONYM SPECIES 9840:9G873 nidx=null parent=4HYBS]
 + Coccus strobus Hartig, 1839 [SYNONYM SPECIES 9841:9GSYD nidx=null parent=4HYBS]
Cochlostyla lignaria lignaria
 - Cochlostyla lignaria lignaria (L. Pfeiffer, 1847) [ACCEPTED SUBSPECIES 9840:7TSQV nidx=null]
 + Cochlostyla lignaria lignaria (L. Pfeiffer, 1842) [SYNONYM SUBSPECIES 9841:9GTJT nidx=null parent=9GY7P]
Colerolumnus
 - Colerolumnus P.K.L. Ng, 2010 [ACCEPTED GENUS 9840:7P3K9 nidx=null]
 + Colerolumnus Ng, 2010 [ACCEPTED GENUS 9841:9GLXW nidx=null]
Compsothrips reuteri
 - Compsothrips reuteri (Trybom, 1913) [ACCEPTED SPECIES 9840:XJBT nidx=null]
 + Compsothrips reuteri (Trybom, 1912) [ACCEPTED SPECIES 9841:9GSLW nidx=null]
Condylocardia dalli
 - Condylocardia dalli Bernard, 1896 [ACCEPTED SPECIES 9840:8YLS6 nidx=null]
 + Condylocardia dalli Bernard, 1897 [ACCEPTED SPECIES 9841:9GVFF nidx=null]
Condylostoma patense
 - Condylostoma patense Müller, 1786 [ACCEPTED SPECIES 9840:9G4H3 nidx=null]
 + Condylostoma patense Müller, 1786 [ACCEPTED SPECIES 9841:9GNM3 nidx=null]
Congeria dactylus
 - Congeria dactylus Brusina, 1902 [SYNONYM SPECIES 9840:87BJW nidx=null parent=8784Y]
 + Congeria dactylus Brusina, 1894 [SYNONYM SPECIES 9841:9GT5K nidx=null parent=9GTFQ]
Conleyus
 - Conleyus PKL Ng & NK Ng, 2003 [ACCEPTED GENUS 9840:7P4FL nidx=null]
 + Conleyus Ng & Ng, 2003 [ACCEPTED GENUS 9841:9GLY3 nidx=null]
Conleyus defodio
 - Conleyus defodio PKL Ng & NK Ng, 2003 [ACCEPTED SPECIES 9840:5ZT9L nidx=null]
 + Conleyus defodio Ng & Ng, 2003 [ACCEPTED SPECIES 9841:9GNM5 nidx=null]
Craspedosoma angulosulcatum
 - Craspedosoma angulosulcatum AmStein, 1857 [SYNONYM SPECIES 9840:Z669 nidx=null parent=3QSQX]
 + Craspedosoma angulosulcatum Am Stein, 1857 [SYNONYM SPECIES 9841:9GNNL nidx=null parent=6NCGP]
Crenopharynx longisetae
 - Crenopharynx longisetae Chitwood, 1936 [SYNONYM SPECIES 9840:9C8PX nidx=null parent=88XG8]
 + Crenopharynx longisetae (Chitwood, 1936) Zograf, Trebukhova & Pavlyuk, 2015 [ACCEPTED SPECIES 9841:9GWVL nidx=null]
Cricothrips karnyi
 - Cricothrips karnyi Trybom, 1913 [ACCEPTED SPECIES 9840:ZFZ3 nidx=null]
 + Cricothrips karnyi Trybom, 1912 [ACCEPTED SPECIES 9841:9GT65 nidx=null]
Cryptopotamon
 - Cryptopotamon P.K.L. Ng & Dudgeon, 1992 [ACCEPTED GENUS 9840:7P6T3 nidx=null]
 + Cryptopotamon Ng & Dudgeon, 1992 [ACCEPTED GENUS 9841:9GLYN nidx=null]
Cryptothrips fuscicauda
 - Cryptothrips fuscicauda Trybom, 1913 [SYNONYM SPECIES 9840:32393 nidx=null parent=4NV9T]
 + Cryptothrips fuscicauda Trybom, 1912 [SYNONYM SPECIES 9841:9GT69 nidx=null parent=4NV9T]
Ctenopharyngodon idella
 - Ctenopharyngodon idella (Valenciennes, 1844) [ACCEPTED SPECIES 9840:99H8T nidx=null]
 + Ctenopharyngodon idella (Valenciennes, 1844) [ACCEPTED SPECIES 9841:9GNPK nidx=null]
Currothelphusa
 - Currothelphusa P.K.L. Ng, 1990 [ACCEPTED GENUS 9840:7P78Q nidx=null]
 + Currothelphusa Ng, 1990 [ACCEPTED GENUS 9841:9GLYT nidx=null]
Cyrena lunulata
 - Cyrena lunulata Yokoyama, 1904 [SYNONYM SPECIES 9840:8KT2V nidx=null parent=8KRM4]
 + Cyrena lunulata Deshayes, 1857 [SYNONYM SPECIES 9841:9GT6X nidx=null parent=993F7]
Cyrena pellati
 - Cyrena pellati de Loriol, 1875 [SYNONYM SPECIES 9840:8QG49 nidx=null parent=8QFX3]
 + Cyrena pellati de Loriol, 1874 [SYNONYM SPECIES 9841:9GT72 nidx=null parent=8QFX3]
Cyrena recluzii
 - Cyrena recluzii Prime, 1865 [SYNONYM SPECIES 9840:33JJB nidx=null parent=4LBDL]
 + Cyrena recluzii Prime, 1860 [SYNONYM SPECIES 9841:9GNRR nidx=null parent=4LBDL]
Cythere costataxi
 - Cythere costataxi ? [SYNONYM SPECIES 9840:9G4LG nidx=null parent=KDBP]
 + Cythere costataxi ? [SYNONYM SPECIES 9841:9GNRT nidx=null parent=KDBP]
Cytherea kingii
 - Cytherea kingii Gray in P. P. King, 1827 [SYNONYM SPECIES 9840:6C9VQ nidx=null parent=PTLQ]
 + Cytherea kingii J. E. Gray, 1826 [SYNONYM SPECIES 9841:9GNRV nidx=null parent=9GNG2]
Dacicardium moesicum
 - Dacicardium moesicum Andreescu & Pană, 1985 [ACCEPTED SPECIES 9840:8M3LP nidx=null]
 + Dacicardium moesicum Papaianopol & Marinescu, 1995 [ACCEPTED SPECIES 9841:9GT75 nidx=null]
Desmolaimus brachystoma
 - Desmolaimus brachystoma Hofmänner & Menzel, 1914 [SYNONYM SPECIES 9840:8G6V8 nidx=null parent=88CPS]
 + Desmolaimus brachystoma (Hofmänner & Menzel, 1914) Micoletzky, 1925 [SYNONYM SPECIES 9841:9GNSZ nidx=null parent=88CPS]
Dinematura gracilis
 - Dinematura gracilis Burmeister, 1833 [SYNONYM SPECIES 9840:368J4 nidx=null parent=368JS]
 + Dinematura gracilis Burmeister, 1835 [SYNONYM SPECIES 9841:9GNTB nidx=null parent=368JS]
Diplopeltis typicus
 - Diplopeltis typicus [SYNONYM SPECIES 9840:8G7GJ nidx=null parent=8859M]
 + Diplopeltis typicus Cobb, 1891 [SYNONYM SPECIES 9841:9GNTL nidx=null parent=8859M]
Dischista rufa
 - Dischista rufa (De Geer, 1778) [ACCEPTED SPECIES 9840:36SN4 nidx=null]
 + Dischista rufa (Degeer, 1778) [ACCEPTED SPECIES 9841:9GNVH nidx=null]
Distortrix cancellinus
 - Distortrix cancellinus [sic] [SYNONYM SPECIES 9840:9G4NY nidx=null parent=6DCDN]
 + Distortrix cancellinus (Lamarck, 1803) [SYNONYM SPECIES 9841:9GNTR nidx=null parent=6DCDN]
Dolium (Dolium) cumingii
 - Dolium (Dolium) cumingii (Hanley, 1849) [SYNONYM SPECIES 9840:3783K nidx=null parent=7CHZK]
 + Dolium (Dolium) cumingii (Reeve, 1849) [SYNONYM SPECIES 9841:9GNTS nidx=null parent=7CHZK]
Doridium depictum var. minor
 - Doridium depictum var. minor Tchang-Si, 1934 [SYNONYM VARIETY 9840:7LQ4P nidx=null parent=4G6FG]
 + Doridium depictum var. minor S. Tchang, 1934 [SYNONYM VARIETY 9841:9GS67 nidx=null parent=9GR3G]
Doryllium minor
 - Doryllium minor Jairajpuri, 1963 [ACCEPTED SPECIES 9840:8G7VY nidx=null]
 + Doryllium minor Jairajpuri, 1964 [ACCEPTED SPECIES 9841:9GNTX nidx=null]
Drepanodorylaimus picardi
 - Drepanodorylaimus picardi (Altherr, 1963) Monteiro, 1970 [ACCEPTED SPECIES 9840:8G7YH nidx=null]
 + Drepanodorylaimus picardi (Altherr, 1963) Andrássy in Monteiro, 1970 [ACCEPTED SPECIES 9841:9GNTY nidx=null]
Drepanotrema limayanum
 - Drepanotrema limayanum (Lesson, 1830) [ACCEPTED SPECIES 9840:37N9P nidx=null]
 + Drepanotrema limayanum (Lesson, 1831) [ACCEPTED SPECIES 9841:9GNTZ nidx=null]
Dynomene sinense
 - Dynomene sinense HL Chen, 1979 [SYNONYM SPECIES 9840:84GT7 nidx=null parent=6DPYS]
 + Dynomene sinense Chen, 1979 [SYNONYM SPECIES 9841:6DPYV nidx=null parent=6DPYS]
Elamenopsis mangalis
 - Elamenopsis mangalis P.K.L. Ng, 1988 [SYNONYM SPECIES 9840:38YHL nidx=null parent=46RXJ]
 + Elamenopsis mangalis Ng, 1988 [SYNONYM SPECIES 9841:9GNVG nidx=null parent=9GPY2]
Elaphinis (Elaphinis) cinereonebulosa
 - Elaphinis (Elaphinis) cinereonebulosa (De Geer, 1778) [ACCEPTED SPECIES 9840:7ZN6H nidx=null]
 + Elaphinis (Elaphinis) cinereonebulosa (Degeer, 1778) [ACCEPTED SPECIES 9841:9GNVM nidx=null]
Elates ransonnettii
 - Elates ransonnettii (Steindachner, 1876) [ACCEPTED SPECIES 9840:395CF nidx=null]
 + Elates ransonnettii (Steindachner, 1876) [ACCEPTED SPECIES 9841:9GNVL nidx=null]
Emberacarcinus
 - Emberacarcinus C Magalhães & PKL Ng, 2019 [ACCEPTED GENUS 9840:847R8 nidx=null]
 + Emberacarcinus Magalhães & Ng, 2019 [ACCEPTED GENUS 9841:9GMDF nidx=null]
Epalzeorhynchos kalopterus
 - Epalzeorhynchos kalopterus (Bleeker, 1850) [ACCEPTED SPECIES 9840:99HSZ nidx=null]
 + Epalzeorhynchos kalopterus (Bleeker, 1850) [ACCEPTED SPECIES 9841:9GNW7 nidx=null]
Ergasilus atafonensis
 - Ergasilus atafonensis Amado & Rocha, 1997 [ACCEPTED SPECIES 9840:6GHY9 nidx=null]
 + Ergasilus atafonensis Amado & Rocha, 1996 [ACCEPTED SPECIES 9841:9GNWK nidx=null]
Ergasilus bahiensis
 - Ergasilus bahiensis Amado & Rocha, 1997 [ACCEPTED SPECIES 9840:6GHXK nidx=null]
 + Ergasilus bahiensis Amado & Rocha, 1996 [ACCEPTED SPECIES 9841:9GNWL nidx=null]
Ergasilus caraguatatubensis
 - Ergasilus caraguatatubensis Amado & Rocha, 1997 [ACCEPTED SPECIES 9840:6GHZ5 nidx=null]
 + Ergasilus caraguatatubensis Amado & Rocha, 1996 [ACCEPTED SPECIES 9841:9GNWM nidx=null]
Ethalia philippii
 - Ethalia philippii (A. Adams, 1854) [SYNONYM SPECIES 9840:3BKVR nidx=null parent=443VG]
 + Ethalia philippii (A. Adams, 1855) [SYNONYM SPECIES 9841:9GNWQ nidx=null parent=9GPVS]
Ethusina alcocki
 - Ethusina alcocki PKL Ng & PH Ho, 2003 [SYNONYM SPECIES 9840:3BLW8 nidx=null parent=3BLX3]
 + Ethusina alcocki Ng & Ho, 2003 [SYNONYM SPECIES 9841:9GNWR nidx=null parent=3BLX3]
Ethusina chenae
 - Ethusina chenae PKL Ng & PH Ho, 2003 [ACCEPTED SPECIES 9840:6H583 nidx=null]
 + Ethusina chenae Ng & Ho, 2003 [ACCEPTED SPECIES 9841:9GNWS nidx=null]
Ethusina insolita
 - Ethusina insolita PKL Ng & PH Ho, 2003 [ACCEPTED SPECIES 9840:3BLWR nidx=null]
 + Ethusina insolita Ng & Ho, 2003 [ACCEPTED SPECIES 9841:9GNWT nidx=null]
Ethusina macrospina
 - Ethusina macrospina PKL Ng & PH Ho, 2003 [ACCEPTED SPECIES 9840:3BLWW nidx=null]
 + Ethusina macrospina Ng & Ho, 2003 [ACCEPTED SPECIES 9841:9GNWV nidx=null]
Ethusina saltator
 - Ethusina saltator PKL Ng & PH Ho, 2003 [SYNONYM SPECIES 9840:3BLX5 nidx=null parent=3BLWZ]
 + Ethusina saltator Ng & Ho, 2003 [SYNONYM SPECIES 9841:9GNWW nidx=null parent=3BLWZ]
Ethusina taiwanensis
 - Ethusina taiwanensis PKL Ng & PH Ho, 2003 [ACCEPTED SPECIES 9840:6GSVS nidx=null]
 + Ethusina taiwanensis Ng & Ho, 2003 [ACCEPTED SPECIES 9841:9GNWX nidx=null]
Euchilus desmaresti
 - Euchilus desmaresti (Prevost, 1821) [SYNONYM SPECIES 9840:6H65D nidx=null parent=4ZHF2]
 + Euchilus desmaresti [sic] [SYNONYM SPECIES 9841:9GNWY nidx=null parent=4ZHF2]
Euclausta cinereum
 - Euclausta cinereum (Oppenheim, 1895) [SYNONYM SPECIES 9840:7R8KS nidx=null parent=7R4G6]
 + Euclausta cinereum [sic] [SYNONYM SPECIES 9841:9GNWZ nidx=null parent=7R4G6]
Euconulus alveus
 - Euconulus alveus F. Sandberger, 1887 [SYNONYM SPECIES 9840:7R8LG nidx=null parent=3BXGT]
 + Euconulus alveus [sic] [SYNONYM SPECIES 9841:9GNX2 nidx=null parent=3BXGT]
Eulima polygyra
 - Eulima polygyra A. Adams, 1851 [SYNONYM SPECIES 9840:7R985 nidx=null parent=7R983]
 + Eulima polygyra A. Adams, 1854 [SYNONYM SPECIES 9841:9GNX7 nidx=null parent=7R983]
Euphyodesmus vector
 - Euphyodesmus vector Chamberlin, 1941 [SYNONYM SPECIES 9840:9G4RZ nidx=null parent=354BV]
 + Euphyodesmus vector Chamberlin, 1941 [SYNONYM SPECIES 9841:9GNX8 nidx=null parent=354BV]
Eupolia brocki
 - Eupolia brocki ? [SYNONYM SPECIES 9840:9G4S2 nidx=null parent=68D67]
 + Eupolia brocki ? [SYNONYM SPECIES 9841:9GNX9 nidx=null parent=68D67]
Eupolia hemprichi
 - Eupolia hemprichi ? [SYNONYM SPECIES 9840:9G4S3 nidx=null parent=68D67]
 + Eupolia hemprichi ? [SYNONYM SPECIES 9841:9GNXB nidx=null parent=68D67]
Eupolia quinquelineata
 - Eupolia quinquelineata ? [SYNONYM SPECIES 9840:9G4S4 nidx=null parent=68D5Y]
 + Eupolia quinquelineata ? [SYNONYM SPECIES 9841:9GNXC nidx=null parent=68D5Y]
Eurytoma terebinthi
 - Eurytoma terebinthi Rondani, 1877 [ACCEPTED SPECIES 9840:9G5DX nidx=null]
 + Eurytoma terebinthi Rondani, 1877 [ACCEPTED SPECIES 9841:9GPTY nidx=null]
Euthria lineata
 - Euthria lineata Martyn [SYNONYM SPECIES 9840:7RB2N nidx=null parent=NL2F]
 + Euthria lineata [sic] [SYNONYM SPECIES 9841:9GNXY nidx=null parent=NL2F]
Faunus (Melanatria) dufresnei
 - Faunus (Melanatria) dufresnei (Deshayes, 1825) [SYNONYM SPECIES 9840:7RBS9 nidx=null parent=6NFJM]
 + Faunus (Melanatria) dufresnei [sic] [SYNONYM SPECIES 9841:9GT8K nidx=null parent=6NFJM]
Faureothrips reticulatus
 - Faureothrips reticulatus (Trybom, 1913) [ACCEPTED SPECIES 9840:3DW5S nidx=null]
 + Faureothrips reticulatus (Trybom, 1912) [ACCEPTED SPECIES 9841:9GT8L nidx=null]
Fissurella crucis
 - Fissurella crucis Beddome, 1882 [SYNONYM SPECIES 9840:6J5WT nidx=null parent=CLK5]
 + Fissurella crucis C. E. Beddome, 1883 [SYNONYM SPECIES 9841:9GNYQ nidx=null parent=9GN3N]
Flabellamon
 - Flabellamon P.K.L. Ng, 1996 [ACCEPTED GENUS 9840:7PG2N nidx=null]
 + Flabellamon Ng, 1996 [ACCEPTED GENUS 9841:9GM66 nidx=null]
Forestiana lucius
 - Forestiana lucius PKL Ng, 2014 [ACCEPTED SPECIES 9840:6JH8T nidx=null]
 + Forestiana lucius Ng, 2014 [ACCEPTED SPECIES 9841:9GNZ6 nidx=null]
Fusus articulatus
 - Fusus articulatus Lamarck, 1816 [SYNONYM SPECIES 9840:99HY4 nidx=null parent=4J8GQ]
 + Fusus articulatus Lamarck, 1822 [SYNONYM SPECIES 9841:9GNZ7 nidx=null parent=4J8GQ]
Garthambrus
 - Garthambrus P.K.L. Ng, 1996 [ACCEPTED GENUS 9840:7P36J nidx=null]
 + Garthambrus Ng, 1996 [ACCEPTED GENUS 9841:9GM6G nidx=null]
Garthasia
 - Garthasia P.K.L. Ng, 1993 [ACCEPTED GENUS 9840:7PGK9 nidx=null]
 + Garthasia Ng, 1993 [ACCEPTED GENUS 9841:9GM6H nidx=null]
Geithusa
 - Geithusa P.K.L. Ng, 1989 [ACCEPTED GENUS 9840:7PGNG nidx=null]
 + Geithusa Ng, 1989 [ACCEPTED GENUS 9841:9GM6J nidx=null]
Geithusa lentiginosa
 - Geithusa lentiginosa P.K.L. Ng, 1992 [ACCEPTED SPECIES 9840:3FH3G nidx=null]
 + Geithusa lentiginosa Ng, 1992 [ACCEPTED SPECIES 9841:9GNZL nidx=null]
Geithusa pulcher
 - Geithusa pulcher PKL Ng, 1989 [SYNONYM SPECIES 9840:84GLL nidx=null parent=92Z5Q]
 + Geithusa pulcher Ng, 1989 [SYNONYM SPECIES 9841:9GNZM nidx=null parent=92Z5Q]
Geosesarma ambawang
 - Geosesarma ambawang P.K.L. Ng, 2015 [ACCEPTED SPECIES 9840:3FS8P nidx=null]
 + Geosesarma ambawang Ng, 2015 [ACCEPTED SPECIES 9841:9GNZQ nidx=null]
Geosesarma aurantium
 - Geosesarma aurantium P.K.L. Ng, 1995 [ACCEPTED SPECIES 9840:3FS8T nidx=null]
 + Geosesarma aurantium Ng, 1995 [ACCEPTED SPECIES 9841:9GNZR nidx=null]
Geosesarma cataracta
 - Geosesarma cataracta P.K.L. Ng, 1986 [ACCEPTED SPECIES 9840:3FS8Y nidx=null]
 + Geosesarma cataracta Ng, 1986 [ACCEPTED SPECIES 9841:9GNZS nidx=null]
Geosesarma danumense
 - Geosesarma danumense P.K.L. Ng, 2002 [ACCEPTED SPECIES 9840:3FS94 nidx=null]
 + Geosesarma danumense Ng, 2002 [ACCEPTED SPECIES 9841:9GNZT nidx=null]
Geosesarma faustum
 - Geosesarma faustum P.K.L. Ng, 2017 [ACCEPTED SPECIES 9840:3FS96 nidx=null]
 + Geosesarma faustum Ng, 2017 [ACCEPTED SPECIES 9841:9GNZV nidx=null]
Geosesarma insulare
 - Geosesarma insulare P.K.L. Ng, 1986 [ACCEPTED SPECIES 9840:3FS9D nidx=null]
 + Geosesarma insulare Ng, 1986 [ACCEPTED SPECIES 9841:9GNZW nidx=null]
Geosesarma insularis
 - Geosesarma insularis P.K.L. Ng, 1986 [SYNONYM SPECIES 9840:84FTL nidx=null parent=3FS9D]
 + Geosesarma insularis Ng, 1986 [SYNONYM SPECIES 9841:9GNZX nidx=null parent=9GNZW]
Geosesarma nemesis
 - Geosesarma nemesis P.K.L. Ng, 1986 [ACCEPTED SPECIES 9840:3FS9N nidx=null]
 + Geosesarma nemesis Ng, 1986 [ACCEPTED SPECIES 9841:9GNZY nidx=null]
Geosesarma pontianak
 - Geosesarma pontianak P.K.L. Ng, 2015 [ACCEPTED SPECIES 9840:6KBJ5 nidx=null]
 + Geosesarma pontianak Ng, 2015 [ACCEPTED SPECIES 9841:9GNZZ nidx=null]
Geosesarma pylaemenes
 - Geosesarma pylaemenes P.K.L. Ng, 2015 [ACCEPTED SPECIES 9840:3FS9W nidx=null]
 + Geosesarma pylaemenes Ng, 2015 [ACCEPTED SPECIES 9841:9GP22 nidx=null]
Geosesarma sabanum
 - Geosesarma sabanum P.K.L. Ng, 1992 [ACCEPTED SPECIES 9840:6KBJ6 nidx=null]
 + Geosesarma sabanum Ng, 1992 [ACCEPTED SPECIES 9841:9GP23 nidx=null]
Geosesarma sabanus
 - Geosesarma sabanus P.K.L. Ng, 1992 [SYNONYM SPECIES 9840:7W9YQ nidx=null parent=6KBJ6]
 + Geosesarma sabanus Ng, 1992 [SYNONYM SPECIES 9841:9GP24 nidx=null parent=9GP23]
Geosesarma scandens
 - Geosesarma scandens P.K.L. Ng, 1986 [ACCEPTED SPECIES 9840:6KBJ8 nidx=null]
 + Geosesarma scandens Ng, 1986 [ACCEPTED SPECIES 9841:9GP25 nidx=null]
Geosesarma serenei
 - Geosesarma serenei P.K.L. Ng, 1986 [ACCEPTED SPECIES 9840:6KBJ2 nidx=null]
 + Geosesarma serenei Ng, 1986 [ACCEPTED SPECIES 9841:9GP26 nidx=null]
Geosesarma spectrum
 - Geosesarma spectrum P.Y.C. Ng & P.K.L. Ng, 2019 [ACCEPTED SPECIES 9840:84FTR nidx=null]
 + Geosesarma spectrum Ng & Ng, 2019 [ACCEPTED SPECIES 9841:9GP27 nidx=null]
Geosesarma sumatraense
 - Geosesarma sumatraense P.K.L. Ng, 1986 [ACCEPTED SPECIES 9840:6KB9X nidx=null]
 + Geosesarma sumatraense Ng, 1986 [ACCEPTED SPECIES 9841:9GP28 nidx=null]
Geosesarma teschi
 - Geosesarma teschi P.K.L. Ng, 1986 [ACCEPTED SPECIES 9840:6KB9V nidx=null]
 + Geosesarma teschi Ng, 1986 [ACCEPTED SPECIES 9841:9GP29 nidx=null]
Geosesarma tiomanica
 - Geosesarma tiomanica P.K.L. Ng, 1986 [SYNONYM SPECIES 9840:7W9YT nidx=null parent=6KB9P]
 + Geosesarma tiomanica Ng, 1986 [SYNONYM SPECIES 9841:9GP2B nidx=null parent=9GP2C]
Geosesarma tiomanicum
 - Geosesarma tiomanicum P.K.L. Ng, 1986 [ACCEPTED SPECIES 9840:6KB9P nidx=null]
 + Geosesarma tiomanicum Ng, 1986 [ACCEPTED SPECIES 9841:9GP2C nidx=null]
Glyptothorax madraspatanus
 - Glyptothorax madraspatanus (Day, 1873) [ACCEPTED SPECIES 9840:8YX9W nidx=null]
 + Glyptothorax madraspatanus (Day, 1873) [ACCEPTED SPECIES 9841:9GP2T nidx=null]
Gonospira palanga
 - Gonospira palanga (Lesson, 1831) [ACCEPTED SPECIES 9840:3GZNC nidx=null]
 + Gonospira palanga (Lesson, 1830) [ACCEPTED SPECIES 9841:9GP3P nidx=null]
Graphidochirus dissolutus
 - Graphidochirus dissolutus Attems, 1952 [ACCEPTED SPECIES 9840:6KRK5 nidx=null]
 + Graphidochirus dissolutus Attems, 1953 [ACCEPTED SPECIES 9841:9GP3S nidx=null]
Grapsus testudinum
 - Grapsus testudinum P. Roux, 1828 [SYNONYM SPECIES 9840:7WDGS nidx=null parent=4JJQZ]
 + Grapsus testudinum Roux, 1828 [SYNONYM SPECIES 9841:6L4VS nidx=null parent=4JJQZ]
Gyliotrachela khaowongensis
 - Gyliotrachela khaowongensis Panha, 1998 [ACCEPTED SPECIES 9840:7RGSC nidx=null]
 + Gyliotrachela khaowongensis (Panha, 1997) [ACCEPTED SPECIES 9841:9GP47 nidx=null]
Gyraulus (Armiger) crista
 - Gyraulus (Armiger) crista (Linnaeus, 1758) [SYNONYM SPECIES 9840:8P5J6 nidx=null parent=8P5J8]
 + Gyraulus (Armiger) crista (Linnaeus, 1758) [SYNONYM SPECIES 9841:3HYBL nidx=null parent=GSG2]
Haemocinus
 - Haemocinus P.K.L. Ng, 2003 [ACCEPTED GENUS 9840:7PHZN nidx=null]
 + Haemocinus Ng, 2003 [ACCEPTED GENUS 9841:9GM7W nidx=null]
Helarctos malayanus
 - Helarctos malayanus (Raffles, 1821) [ACCEPTED SPECIES 9840:6LGHJ nidx=null]
 + Helarctos malayanus (Raffles, 1822) [ACCEPTED SPECIES 9841:9GQ8J nidx=null]
Helarctos malayanus malayanus
 - Helarctos malayanus malayanus (Raffles, 1821) [ACCEPTED SUBSPECIES 9840:5HLVZ nidx=null]
 + Helarctos malayanus malayanus (Raffles, 1822) [ACCEPTED SUBSPECIES 9841:9GSLF nidx=null]
Helicostyla olanivanensis
 - Helicostyla olanivanensis (Bartsch, 1913) [SYNONYM SPECIES 9840:8P5LJ nidx=null parent=86CCX]
 + Helicostyla olanivanensis (Bartsch, 1913) [ACCEPTED SPECIES 9841:7RJH3 nidx=null]
Helix cyclostoma
 - Helix cyclostoma Menke, 1828 [SYNONYM SPECIES 9840:7RL6M nidx=null parent=7H3H7]
 + Helix cyclostoma Menke, 1830 [SYNONYM SPECIES 9841:9GQKF nidx=null parent=7H3H7]
Helix sparsa
 - Helix sparsa Mousson, 1849 [SYNONYM SPECIES 9840:8M44Q nidx=null parent=5W5MP]
 + Helix sparsa Mousson, 1854 [SYNONYM SPECIES 9841:9GT8X nidx=null parent=9GN8H]
Hemiodus amazonum
 - Hemiodus amazonum (Humboldt, 1821) [ACCEPTED SPECIES 9840:99JB6 nidx=null]
 + Hemiodus amazonum (Humboldt, 1821) [ACCEPTED SPECIES 9841:9GP6D nidx=null]
Hepatus
 - Hepatus Latreille, 1802 [ACCEPTED GENUS 9840:7P5PY nidx=null]
 + Hepatus Bosc, 1801 [ACCEPTED GENUS 9841:9GM8H nidx=null]
Heterocypris
 - Heterocypris Claus, 1893 [ACCEPTED GENUS 9840:84P3K nidx=null]
 + Heterocypris Claus, 1892 [ACCEPTED GENUS 9841:9GM8J nidx=null]
Heterotrigonia
 - Heterotrigonia Cox, 1952 [ACCEPTED GENUS 9840:7P56G nidx=null]
 + Heterotrigonia L. R. Cox, 1952 [ACCEPTED GENUS 9841:9GMLQ nidx=null]
Heterovaginina limayana
 - Heterovaginina limayana (Lesson, 1830) [ACCEPTED SPECIES 9840:7RP2K nidx=null]
 + Heterovaginina limayana (Lesson, 1831) [ACCEPTED SPECIES 9841:9GT8Z nidx=null]
Hexacentrus mundus
 - Hexacentrus mundus (Walker, 1869) [ACCEPTED SPECIES 9840:3LFYP nidx=null]
 + Hexacentrus mundus (Walker, 1869) [SYNONYM SPECIES 9841:9GQLN nidx=null parent=5HP9W]
 + Hexacentrus mundus (Walker, 1869) [ACCEPTED SPECIES 9841:9GQLP nidx=null]
Hirtomurex senticosus
 - Hirtomurex senticosus (H. Adams & A. Adams, 1863) [ACCEPTED SPECIES 9840:3M4N6 nidx=null]
 + Hirtomurex senticosus (H. Adams & A. Adams, 1864) [ACCEPTED SPECIES 9841:9GP6T nidx=null]
Homostichanthidae
 - Homostichanthidae [ACCEPTED FAMILY 9840:B5M nidx=null]
 + Homostichanthidae Carlgren, 1900 [ACCEPTED FAMILY 9841:9GLWZ nidx=null]
Homostichanthus
 - Homostichanthus [ACCEPTED GENUS 9840:4YFK nidx=null]
 + Homostichanthus Duerden, 1900 [ACCEPTED GENUS 9841:9GMM3 nidx=null]
Hoplothrips natalensis
 - Hoplothrips natalensis Trybom, 1913 [SYNONYM SPECIES 9840:3MNCC nidx=null parent=3XL2W]
 + Hoplothrips natalensis Trybom, 1912 [SYNONYM SPECIES 9841:9GT92 nidx=null parent=3XL2W]
Hyalopatina planata
 - Hyalopatina planata (Habe, 1951) [ACCEPTED SPECIES 9840:3MWRQ nidx=null]
 + Hyalopatina planata (Habe, 1961) [ACCEPTED SPECIES 9841:9GP79 nidx=null]
Ibanum
 - Ibanum P.K.L. Ng, 1995 [ACCEPTED GENUS 9840:7PLGN nidx=null]
 + Ibanum Ng, 1995 [ACCEPTED GENUS 9841:9GM8W nidx=null]
Inachus thoracicus
 - Inachus thoracicus P. Roux, 1830 [ACCEPTED SPECIES 9840:7WQR9 nidx=null]
 + Inachus thoracicus Roux, 1830 [ACCEPTED SPECIES 9841:3PKWP nidx=null]
Indopinnixa shellorum
 - Indopinnixa shellorum P.K.L. Ng, 2014 [ACCEPTED SPECIES 9840:3PNJ8 nidx=null]
 + Indopinnixa shellorum Ng, 2014 [ACCEPTED SPECIES 9841:9GP7P nidx=null]
Insulaplax
 - Insulaplax P.K.L. Ng, 2019 [ACCEPTED GENUS 9840:84GNP nidx=null]
 + Insulaplax Ng, 2019 [ACCEPTED GENUS 9841:9GSQP nidx=null]
Islamia bourguignati
 - Islamia bourguignati (T. Letourneux, 1869) [ACCEPTED SPECIES 9840:3Q792 nidx=null]
 + Islamia bourguignati (A. Letourneux, 1869) [ACCEPTED SPECIES 9841:9GP7V nidx=null]
Isodesmus
 - Isodesmus Cook, 1896 [ACCEPTED GENUS 9840:7PLRC nidx=null]
 + Isodesmus Cook, 1895 [ACCEPTED GENUS 9841:9GM97 nidx=null]
Johora booliati
 - Johora booliati PKL Ng, 2020 [ACCEPTED SPECIES 9840:84GXG nidx=null]
 + Johora booliati Ng, 2020 [ACCEPTED SPECIES 9841:9GT99 nidx=null]
Johora erici
 - Johora erici PKL Ng, 2020 [ACCEPTED SPECIES 9840:84GXH nidx=null]
 + Johora erici Ng, 2020 [ACCEPTED SPECIES 9841:9GT9B nidx=null]
Johora intermedia
 - Johora intermedia P.K.L. Ng, 1986 [ACCEPTED SPECIES 9840:99JQ4 nidx=null]
 + Johora intermedia Ng, 1986 [ACCEPTED SPECIES 9841:9GP8F nidx=null]
Johora johorensis intermedia
 - Johora johorensis intermedia P.K.L. Ng, 1986 [SYNONYM SUBSPECIES 9840:99S9S nidx=null parent=99JQ4]
 + Johora johorensis intermedia Ng, 1986 [SYNONYM SUBSPECIES 9841:9GS2X nidx=null parent=9GP8F]
Johora johorensis murphyi
 - Johora johorensis murphyi P.K.L. Ng, 1986 [SYNONYM SUBSPECIES 9840:99S9T nidx=null parent=99JQ5]
 + Johora johorensis murphyi Ng, 1986 [SYNONYM SUBSPECIES 9841:9GS2Y nidx=null parent=9GP8G]
Johora michaeli
 - Johora michaeli PKL Ng, 2020 [ACCEPTED SPECIES 9840:84GXJ nidx=null]
 + Johora michaeli Ng, 2020 [ACCEPTED SPECIES 9841:9GT9C nidx=null]
Johora murphyi
 - Johora murphyi P.K.L. Ng, 1986 [ACCEPTED SPECIES 9840:99JQ5 nidx=null]
 + Johora murphyi Ng, 1986 [ACCEPTED SPECIES 9841:9GP8G nidx=null]
Johora singaporensis
 - Johora singaporensis P.K.L. Ng, 1986 [ACCEPTED SPECIES 9840:99JQ6 nidx=null]
 + Johora singaporensis Ng, 1986 [ACCEPTED SPECIES 9841:9GP8H nidx=null]
Jujubinus hannonicus
 - Jujubinus hannonicus (Rutot in Cossmann, 1915) [ACCEPTED SPECIES 9840:7RRXJ nidx=null]
 + Jujubinus hannonicus (Cossmann, 1919) [ACCEPTED SPECIES 9841:9GT9D nidx=null]
Karstarma boholano
 - Karstarma boholano (P.K.L. Ng, 2002) [ACCEPTED SPECIES 9840:3R3BP nidx=null]
 + Karstarma boholano (Ng, 2002) [ACCEPTED SPECIES 9841:9GP8L nidx=null]
Karstarma guamense
 - Karstarma guamense (P.K.L. Ng, 2002) [ACCEPTED SPECIES 9840:3R3BS nidx=null]
 + Karstarma guamense (Ng, 2002) [ACCEPTED SPECIES 9841:9GP8M nidx=null]
Karstarma loyalty
 - Karstarma loyalty (P.K.L. Ng, 2002) [ACCEPTED SPECIES 9840:3R3BV nidx=null]
 + Karstarma loyalty (Ng, 2002) [ACCEPTED SPECIES 9841:9GP8N nidx=null]
Karstarma novabritannia
 - Karstarma novabritannia (P.K.L. Ng, 1988) [ACCEPTED SPECIES 9840:3R3BX nidx=null]
 + Karstarma novabritannia (Ng, 1988) [ACCEPTED SPECIES 9841:9GP8P nidx=null]
Karstarma sulu
 - Karstarma sulu (P.K.L. Ng, 2002) [ACCEPTED SPECIES 9840:3R3BZ nidx=null]
 + Karstarma sulu (Ng, 2002) [ACCEPTED SPECIES 9841:9GP8Q nidx=null]
Karstarma umbra
 - Karstarma umbra P.K.L. Ng, 2020 [ACCEPTED SPECIES 9840:84GXK nidx=null]
 + Karstarma umbra Ng, 2020 [ACCEPTED SPECIES 9841:9GT9F nidx=null]
Kraussiinae
 - Kraussiinae P.K.L. Ng, 1993 [ACCEPTED SUBFAMILY 9840:847GB nidx=null]
 + Kraussiinae Ng, 1993 [ACCEPTED SUBFAMILY 9841:9GLYX nidx=null]
Kurtziella cerinum
 - Kurtziella cerinum [sic] [SYNONYM SPECIES 9840:3RG9Z nidx=null parent=3RG9Y]
 + Kurtziella cerinum (Kurtz & W. Stimpson, 1851) [SYNONYM SPECIES 9841:9GP8V nidx=null parent=3RG9Y]
Labuanium navus
 - Labuanium navus P.K.L. Ng, 2012 [SYNONYM SPECIES 9840:7WTQR nidx=null parent=84GRP]
 + Labuanium navus Ng, 2012 [SYNONYM SPECIES 9841:6NPT3 nidx=null parent=84GRP]
Lambrus massena
 - Lambrus massena P. Roux, 1830 [SYNONYM SPECIES 9840:7WV6X nidx=null parent=7Y225]
 + Lambrus massena Roux, 1830 [SYNONYM SPECIES 9841:6NVQV nidx=null parent=4DTY9]
Lambrus mediterraneus
 - Lambrus mediterraneus P. Roux, 1828 [SYNONYM SPECIES 9840:7WV6Y nidx=null parent=4Z5Q9]
 + Lambrus mediterraneus Roux, 1828 [SYNONYM SPECIES 9841:3RYVF nidx=null parent=4Z5Q9]
Lambrus montgrandis
 - Lambrus montgrandis P Roux, 1830 [SYNONYM SPECIES 9840:7WV6Z nidx=null parent=34WJ4]
 + Lambrus montgrandis Roux, 1830 [SYNONYM SPECIES 9841:3RYVK nidx=null parent=34WJ4]
Lamoha
 - Lamoha PKL Ng, 1998 [ACCEPTED GENUS 9840:7P86X nidx=null]
 + Lamoha Ng, 1998 [ACCEPTED GENUS 9841:9GKY9 nidx=null]
Latreillia
 - Latreillia P. Roux, 1830 [ACCEPTED GENUS 9840:7P8S6 nidx=null]
 + Latreillia Roux, 1830 [ACCEPTED GENUS 9841:9GMB3 nidx=null]
Latreillia elegans
 - Latreillia elegans P. Roux, 1830 [ACCEPTED SPECIES 9840:7VMDG nidx=null]
 + Latreillia elegans Roux, 1830 [ACCEPTED SPECIES 9841:3SLTG nidx=null]
Lavigno lactea
 - Lavigno lactea Récluz in Chenu, 1845 [SYNONYM SPECIES 9840:3SNMB nidx=null parent=4VYNT]
 + Lavigno lactea (Linnaeus, 1758 sensu Lamarck, 1818) [SYNONYM SPECIES 9841:9GP9Q nidx=null parent=4VYNT]
Leptogastrothrips reuteri
 - Leptogastrothrips reuteri Trybom, 1913 [SYNONYM SPECIES 9840:3TPBY nidx=null parent=XJBT]
 + Leptogastrothrips reuteri Trybom, 1912 [SYNONYM SPECIES 9841:9GT9K nidx=null parent=9GSLW]
Lernanthropus pupa
 - Lernanthropus pupa Burmeister, 1833 [ACCEPTED SPECIES 9840:6PPK8 nidx=null]
 + Lernanthropus pupa Burmeister, 1835 [ACCEPTED SPECIES 9841:9GPDS nidx=null]
Leucotina punctata
 - Leucotina punctata A. Adams, 1860 [ACCEPTED SPECIES 9840:6PVPS nidx=null]
 + Leucotina punctata A. Adams, 1861 [ACCEPTED SPECIES 9841:9GPDV nidx=null]
Liotrigonia
 - Liotrigonia Cox, 1952 [ACCEPTED GENUS 9840:7P7MT nidx=null]
 + Liotrigonia L. R. Cox, 1952 [ACCEPTED GENUS 9841:9GMPS nidx=null]
Lithophaga laevigata
 - Lithophaga laevigata (Klemmann, 1980) [SYNONYM SPECIES 9840:3VKV2 nidx=null parent=3T2GD]
 + Lithophaga laevigata (Kleemann, 1980) [SYNONYM SPECIES 9841:9GPF9 nidx=null parent=3T2GD]
Longchaeus suturalis
 - Longchaeus suturalis (H. C. Lea, 1843) [ACCEPTED SPECIES 9840:3VYL5 nidx=null]
 + Longchaeus suturalis (H. C. Lea, 1846) [ACCEPTED SPECIES 9841:9GPFS nidx=null]
Luteocarcinus
 - Luteocarcinus P.K.L. Ng, 1990 [ACCEPTED GENUS 9840:7PN54 nidx=null]
 + Luteocarcinus Ng, 1990 [ACCEPTED GENUS 9841:9GMBR nidx=null]
Lycettitrigonia excentrica
 - Lycettitrigonia excentrica [SYNONYM SPECIES 9840:3WJJ3 nidx=null parent=3WJJ2]
 + Lycettitrigonia excentrica [sic] [SYNONYM SPECIES 9841:9GPFZ nidx=null parent=3WJJ2]
Lycettitrigonia undulatoplicata
 - Lycettitrigonia undulatoplicata M. R. Cooper, 2015 [SYNONYM SPECIES 9840:3WJJB nidx=null parent=72Q4H]
 + Lycettitrigonia undulatoplicata [sic] [SYNONYM SPECIES 9841:9GPG2 nidx=null parent=72Q4H]
Macellolophini
 - Macellolophini Attems, 1940 [ACCEPTED TRIBE 9840:8458W nidx=null]
 + Macellolophini Verhoeff, 1931 [ACCEPTED TRIBE 9841:9GLZ4 nidx=null]
Macropipus tuberculatus
 - Macropipus tuberculatus (P. Roux, 1830) [ACCEPTED SPECIES 9840:7VR52 nidx=null]
 + Macropipus tuberculatus (Roux, 1830) [ACCEPTED SPECIES 9841:3X8B6 nidx=null]
Maghreboniscus
 - Maghreboniscus Vandel, 1959 [ACCEPTED GENUS 9840:7PDLV nidx=null]
 + Maghreboniscus Garcia, 2022 [ACCEPTED GENUS 9841:9GMBZ nidx=null]
Magicicada cassini
 - Magicicada cassini (Fisher, 1852) [ACCEPTED SPECIES 9840:735J9 nidx=null]
 + Magicicada cassini (Fisher, 1852) [ACCEPTED SPECIES 9841:9GSWR nidx=null]
Malayopotamon weh
 - Malayopotamon weh PKL Ng, 2014 [ACCEPTED SPECIES 9840:734SJ nidx=null]
 + Malayopotamon weh Ng, 2014 [ACCEPTED SPECIES 9841:9GPS6 nidx=null]
Mathildella rubra
 - Mathildella rubra P.K.L. Ng & P.H. Ho, 2003 [ACCEPTED SPECIES 9840:72V37 nidx=null]
 + Mathildella rubra Ng & Ho, 2003 [ACCEPTED SPECIES 9841:9GPSP nidx=null]
Medfracaulus sana
 - Medfracaulus sana (Barrande in Perner, 1907) [ACCEPTED SPECIES 9840:3YNF3 nidx=null]
 + Medfracaulus sana (Perner, 1907) [SYNONYM SPECIES 9841:9GPSR nidx=null parent=9GPSS]
Melanella polygyra
 - Melanella polygyra (A. Adams, 1851) [SYNONYM SPECIES 9840:7S48H nidx=null parent=7R983]
 + Melanella polygyra (A. Adams, 1854) [SYNONYM SPECIES 9841:9GPSV nidx=null parent=7R983]
Melanopsis oxicanthe
 - Melanopsis oxicanthe Brusina, 1902 [SYNONYM SPECIES 9840:72WTM nidx=null parent=72X5M]
 + Melanopsis oxicanthe [sic] [SYNONYM SPECIES 9841:9GPSZ nidx=null parent=72X5M]
Mesodesmus robustus
 - Mesodesmus robustus (Silvestri, 1907) [ACCEPTED SPECIES 9840:423FC nidx=null]
 - Mesodesmus robustus (Attems, 1952) [PROVISIONALLY_ACCEPTED SPECIES 9840:423FD nidx=null]
 + Mesodesmus robustus (Attems, 1953) [ACCEPTED SPECIES 9841:9GPTF nidx=null]
Mesonauta festivus
 - Mesonauta festivus (Heckel, 1840) [ACCEPTED SPECIES 9840:9G5DS nidx=null]
 + Mesonauta festivus (Heckel, 1840) [ACCEPTED SPECIES 9841:9GPTH nidx=null]
Mesonchium pellucidum
 - Mesonchium pellucidum [SYNONYM SPECIES 9840:88NNV nidx=null parent=8G7NM]
 + Mesonchium pellucidum (Cobb, 1920) Cobb, 1935 [SYNONYM SPECIES 9841:9GPTJ nidx=null parent=8G7NM]
Metahuntemannia smirnovi
 - Metahuntemannia smirnovi Bodin, 1968 [ACCEPTED SPECIES 9840:73CX2 nidx=null]
 + Metahuntemannia smirnovi Drzycimski, 1968 [ACCEPTED SPECIES 9841:9GPTS nidx=null]
Microciona minutula
 - Microciona minutula Carter, 1876 [SYNONYM SPECIES 9840:42TGB nidx=null parent=7949J]
 + Microciona minutula Carter, 1880 [SYNONYM SPECIES 9841:9GPV5 nidx=null parent=78RXL]
Micromaia batalleri
 - Micromaia batalleri Via, 1959 [ACCEPTED SPECIES 9840:9F88D nidx=null]
 + Micromaia batalleri Vía Boada, 1959 [ACCEPTED SPECIES 9841:9GTW9 nidx=null]
Mirograpsus serratipes
 - Mirograpsus serratipes PKL Ng, 2019 [ACCEPTED SPECIES 9840:84G24 nidx=null]
 + Mirograpsus serratipes Ng, 2019 [ACCEPTED SPECIES 9841:9GPVC nidx=null]
Modiola polita
 - Modiola polita A. E. Verrill & S. Smith [in Verrill] , 1880 [SYNONYM SPECIES 9840:8SX5S nidx=null parent=8SVXL]
 + Modiola polita A. E. Verrill & S. Smith, 1880 [SYNONYM SPECIES 9841:43TKC nidx=null parent=D94J]
Monilea philippii
 - Monilea philippii A. Adams, 1854 [ACCEPTED SPECIES 9840:443VG nidx=null]
 + Monilea philippii A. Adams, 1855 [ACCEPTED SPECIES 9841:9GPVS nidx=null]
Monoceros grande
 - Monoceros grande Gray in G. B. Sowerby I, 1835 [SYNONYM SPECIES 9840:7S6P8 nidx=null parent=8WRNF]
 + Monoceros grande G. B. Sowerby I, 1835 [SYNONYM SPECIES 9841:9GPVT nidx=null parent=8WRNF]
Murgeina apula
 - Murgeina apula (Luperto Sinni, 1968) [ACCEPTED SPECIES 9840:82YZD nidx=null]
 + Murgeina apula (Luperto Sinni, 1969) [ACCEPTED SPECIES 9841:9GPW6 nidx=null]
Mycale kolletae
 - Mycale kolletae Carballo & Hajdu, 1998 [SYNONYM SPECIES 9840:44S5F nidx=null parent=44RTK]
 + Mycale kolletae Carballo & Hajdu, 2001 [SYNONYM SPECIES 9841:9GPW8 nidx=null parent=44RTK]
Mylossoma duriventre
 - Mylossoma duriventre (Cuvier, 1818) [ACCEPTED SPECIES 9840:45485 nidx=null]
 + Mylossoma duriventre (Cuvier, 1818) [ACCEPTED SPECIES 9841:9GPWF nidx=null]
Myophorella (Myophorella) eichwaldi
 - Myophorella (Myophorella) eichwaldi Saveliev, 1958 [SYNONYM SPECIES 9840:4558P nidx=null parent=4559D]
 + Myophorella (Myophorella) eichwaldi Saveliev, 1960 [SYNONYM SPECIES 9841:9GPWH nidx=null parent=4559D]
Myophorella kiwawaensis
 - Myophorella kiwawaensis Cox, 1965 [ACCEPTED SPECIES 9840:4559H nidx=null]
 + Myophorella kiwawaensis L. R. Cox, 1965 [ACCEPTED SPECIES 9841:9GPWJ nidx=null]
Myophorella quennelli
 - Myophorella quennelli Cox, 1965 [ACCEPTED SPECIES 9840:4559R nidx=null]
 + Myophorella quennelli L. R. Cox, 1965 [ACCEPTED SPECIES 9841:9GPWK nidx=null]
Myophorella spinifera
 - Myophorella spinifera (d'Orbigny, 1849) [ACCEPTED SPECIES 9840:94LTV nidx=null]
 + Myophorella spinifera (d'Orbigny, 1850) [ACCEPTED SPECIES 9841:9GTWL nidx=null]
Myophorigonia
 - Myophorigonia Cox, 1952 [ACCEPTED GENUS 9840:7P9F3 nidx=null]
 + Myophorigonia L. R. Cox, 1952 [ACCEPTED GENUS 9841:9GMRM nidx=null]
Namibiella herero
 - Namibiella herero (Zilch, 1839) [ACCEPTED SPECIES 9840:86WB8 nidx=null]
 + Namibiella herero (Zilch, 1939) [ACCEPTED SPECIES 9841:9GTBF nidx=null]
Nassa (Nassa) costata
 - Nassa (Nassa) costata A. Adams, 1853 [SYNONYM SPECIES 9840:45QQX nidx=null parent=45RLN]
 + Nassa (Nassa) costata A. Adams, 1852 [SYNONYM SPECIES 9841:9GPWT nidx=null parent=45RLN]
Nassarius (Hima) ischnus var. brunneofasciata
 - Nassarius (Hima) ischnus var. brunneofasciata Melvill, 1899 [SYNONYM VARIETY 9840:5Q98P nidx=null parent=45RS8]
 + Nassarius (Hima) ischnus var. brunneofasciata Melvill, 1928 [SYNONYM VARIETY 9841:9GS6X nidx=null parent=45RS8]
Nautilus crista
 - Nautilus crista Linnaeus, 1758 [SYNONYM SPECIES 9840:8P6QX nidx=null parent=8P5J8]
 + Nautilus crista Linnaeus, 1758 [SYNONYM SPECIES 9841:45VL7 nidx=null parent=GSG2]
Navicella tesselata
 - Navicella tesselata Lamarck, 1816 [SYNONYM SPECIES 9840:45W2K nidx=null parent=4WR82]
 + Navicella tesselata [sic] [SYNONYM SPECIES 9841:9GPWZ nidx=null parent=9GRHW]
Navicula grimmii
 - Navicula grimmii Krasske [SYNONYM SPECIES 9840:45WH3 nidx=null parent=45WH2]
 + Navicula grimmii Krasske [SYNONYM SPECIES 9841:9GPX3 nidx=null parent=45WH2]
Navicula thienemannii
 - Navicula thienemannii Hustedt [ACCEPTED SPECIES 9840:45WXQ nidx=null]
 + Navicula thienemannii Hustedt [ACCEPTED SPECIES 9841:9GPX4 nidx=null]
Neaera multicostata
 - Neaera multicostata A. E. Verrill & S. Smith [in Verrill] , 1880 [SYNONYM SPECIES 9840:8SX8P nidx=null parent=R5KY]
 + Neaera multicostata A. E. Verrill & S. Smith, 1880 [SYNONYM SPECIES 9841:45XNL nidx=null parent=R5KY]
Nemoron
 - Nemoron P.K.L. Ng, 1996 [ACCEPTED GENUS 9840:7PPWD nidx=null]
 + Nemoron Ng, 1996 [ACCEPTED GENUS 9841:9GMDM nidx=null]
Neocordyloporus yangambinus
 - Neocordyloporus yangambinus (Attems, 1952) [ACCEPTED SPECIES 9840:46F3Q nidx=null]
 + Neocordyloporus yangambinus (Attems, 1953) [ACCEPTED SPECIES 9841:9GPXJ nidx=null]
Neomicrorbis
 - Neomicrorbis Rovereto, 1904 [ACCEPTED GENUS 9840:84RRD nidx=null]
 - Neomicrorbis Rovereto, 1904 [PROVISIONALLY_ACCEPTED GENUS 9840:87JF9 nidx=null]
 + Neomicrorbis Rovereto, 1903 [ACCEPTED GENUS 9841:9GMDW nidx=null]
 + Neomicrorbis Rovereto, 1903 [PROVISIONALLY_ACCEPTED GENUS 9841:9GMDX nidx=null]
Neorhynchoplax dentata
 - Neorhynchoplax dentata P.K.L. Ng, 1995 [ACCEPTED SPECIES 9840:46RX7 nidx=null]
 + Neorhynchoplax dentata Ng, 1995 [ACCEPTED SPECIES 9841:9GPXZ nidx=null]
Neorhynchoplax mangalis
 - Neorhynchoplax mangalis (P.K.L. Ng, 1988) [ACCEPTED SPECIES 9840:46RXJ nidx=null]
 + Neorhynchoplax mangalis (Ng, 1988) [ACCEPTED SPECIES 9841:9GPY2 nidx=null]
Neorhynchoplax venusta
 - Neorhynchoplax venusta P.K.L. Ng, 2015 [ACCEPTED SPECIES 9840:46RXX nidx=null]
 + Neorhynchoplax venusta Ng, 2015 [ACCEPTED SPECIES 9841:9GPY3 nidx=null]
Neotrigonia novaguineana
 - Neotrigonia novaguineana Skwarko, 1967 [ACCEPTED SPECIES 9840:46VWQ nidx=null]
 + Neotrigonia novaguineana Skwarko, 1968 [ACCEPTED SPECIES 9841:9GPY6 nidx=null]
Nereis articulata
 - Nereis articulata Ehlers, 1887 [SYNONYM SPECIES 9840:474HJ nidx=null parent=5XKTV]
 + Nereis articulata Hsueh, 2020 [SYNONYM SPECIES 9841:9GNR4 nidx=null parent=9GWL6]
Nereis hircinicola
 - Nereis hircinicola Eisig, 1870 [SYNONYM SPECIES 9840:474NJ nidx=null parent=SNJN]
 + Nereis hircinicola Eisig, 1869 [SYNONYM SPECIES 9841:9GNR7 nidx=null parent=9GXLY]
Niasathelphusa
 - Niasathelphusa P.K.L. Ng, 1991 [ACCEPTED GENUS 9840:7PQBM nidx=null]
 + Niasathelphusa Ng, 1991 [ACCEPTED GENUS 9841:9GMF7 nidx=null]
Nipponitrigonia
 - Nipponitrigonia Cox, 1952 [ACCEPTED GENUS 9840:7P9VN nidx=null]
 + Nipponitrigonia L. R. Cox, 1952 [ACCEPTED GENUS 9841:9GMT7 nidx=null]
Nitidella guttata
 - Nitidella guttata sensu Bartsch & Rehder, 1939 [SYNONYM SPECIES 9840:47JFV nidx=null parent=43QWR]
 + Nitidella guttata (G. B. Sowerby I, 1832) [SYNONYM SPECIES 9841:9GPYM nidx=null parent=43QWR]
Notobranchaea hjorti
 - Notobranchaea hjorti (Bonnevie, 1913) [ACCEPTED SPECIES 9840:47V6C nidx=null]
 + Notobranchaea hjorti [sic] [ACCEPTED SPECIES 9841:9GPYX nidx=null]
Nototrigonia
 - Nototrigonia Cox, 1952 [ACCEPTED GENUS 9840:7P9ZK nidx=null]
 + Nototrigonia L. R. Cox, 1952 [ACCEPTED GENUS 9841:9GMTJ nidx=null]
Nuditheca dallii
 - Nuditheca dallii (Clark, 1876) [ACCEPTED SPECIES 9840:483KW nidx=null]
 + Nuditheca dallii (Clark, 1877) [ACCEPTED SPECIES 9841:9GKZW nidx=null]
Nummofallotia apula
 - Nummofallotia apula Luperto Sinni, 1968 [SYNONYM SPECIES 9840:833P4 nidx=null parent=82YZD]
 + Nummofallotia apula Luperto Sinni, 1969 [SYNONYM SPECIES 9841:9GPZ2 nidx=null parent=9GPW6]
Nummofallotia cenomana
 - Nummofallotia cenomana Luperto Sinni, 1998 [ACCEPTED SPECIES 9840:833P5 nidx=null]
 + Nummofallotia cenomana Luperto Sinni, 1999 [ACCEPTED SPECIES 9841:9GPZ3 nidx=null]
Odostomia suezakiensis
 - Odostomia suezakiensis Nomura, 1936 [ACCEPTED SPECIES 9840:48T7X nidx=null]
 + Odostomia suezakiensis Nomura, 1938 [ACCEPTED SPECIES 9841:9GQ24 nidx=null]
Oistotrigonia
 - Oistotrigonia Cox, 1952 [ACCEPTED GENUS 9840:7PB69 nidx=null]
 + Oistotrigonia L. R. Cox, 1952 [ACCEPTED GENUS 9841:9GMVK nidx=null]
Olenothus
 - Olenothus P.K.L. Ng, 2002 [ACCEPTED GENUS 9840:7PQQT nidx=null]
 + Olenothus Ng, 2002 [ACCEPTED GENUS 9841:9GMFM nidx=null]
Onoba verrilli
 - Onoba verrilli [SYNONYM SPECIES 9840:6SN7G nidx=null parent=669GV]
 + Onoba verrilli (Friele, 1886) [SYNONYM SPECIES 9841:9GQ2F nidx=null parent=669GV]
Opisthotrigonia
 - Opisthotrigonia Cox, 1952 [ACCEPTED GENUS 9840:7PBBJ nidx=null]
 + Opisthotrigonia L. R. Cox, 1952 [ACCEPTED GENUS 9841:9GMVT nidx=null]
Orcovita holthuisi
 - Orcovita holthuisi N.K. Ng & P.K.L. Ng, 2009 [ACCEPTED SPECIES 9840:754ZB nidx=null]
 + Orcovita holthuisi Ng & Ng, 2009 [ACCEPTED SPECIES 9841:9GQ3V nidx=null]
Orcovita mcneiceae
 - Orcovita mcneiceae N.K. Ng & P.K.L. Ng, 2002 [ACCEPTED SPECIES 9840:6SSYZ nidx=null]
 + Orcovita mcneiceae Ng & Ng, 2002 [ACCEPTED SPECIES 9841:9GQ3W nidx=null]
Oreophorus (Oreotlos) speciosus
 - Oreophorus (Oreotlos) speciosus H.-L. Chen, 1989 [SYNONYM SPECIES 9840:7XRVQ nidx=null parent=755ZQ]
 + Oreophorus (Oreotlos) speciosus Chen, 1989 [SYNONYM SPECIES 9841:755WM nidx=null parent=755ZQ]
Orotrechosoma
 - Orotrechosoma Verhoeff, 1900 [ACCEPTED GENUS 9840:7PR69 nidx=null]
 + Orotrechosoma [ACCEPTED GENUS 9841:63HLS nidx=null]
Orthotrigonia
 - Orthotrigonia Cox, 1952 [ACCEPTED GENUS 9840:7PBDB nidx=null]
 + Orthotrigonia L. R. Cox, 1952 [ACCEPTED GENUS 9841:9GMW3 nidx=null]
Ovula adamsi
 - Ovula adamsi Weinkauff, 1881 [SYNONYM SPECIES 9840:7SKKG nidx=null parent=77Y82]
 + Ovula adamsi [sic] [SYNONYM SPECIES 9841:9GQ49 nidx=null parent=77Y82]
Ovula blanville
 - Ovula blanville Leach, 1847 [SYNONYM SPECIES 9840:7SKKS nidx=null parent=4XFG2]
 + Ovula blanville [sic] [SYNONYM SPECIES 9841:9GQ4B nidx=null parent=4XFG2]
Oxyropsis carinata
 - Oxyropsis carinata (Steindachner, 1879) [ACCEPTED SPECIES 9840:9CYT9 nidx=null]
 + Oxyropsis carinata (Steindachner, 1879) [ACCEPTED SPECIES 9841:9GQ4G nidx=null]
Pachychilus (Glyptomelania) glaphyrus polygonotus
 - Pachychilus (Glyptomelania) glaphyrus polygonotus (Lea, 1850) [SYNONYM SUBSPECIES 9840:8JJPS nidx=null parent=7SKVR]
 + Pachychilus (Glyptomelania) glaphyrus polygonotus (I. Lea & H. C. Lea, 1851) [SYNONYM SUBSPECIES 9841:9GS4J nidx=null parent=7SKVR]
Pachychilus glaphyrus polygonotus
 - Pachychilus glaphyrus polygonotus (Lea, 1850) [SYNONYM SUBSPECIES 9840:8JJ4J nidx=null parent=7SKVR]
 + Pachychilus glaphyrus polygonotus (I. Lea & H. C. Lea, 1851) [SYNONYM SUBSPECIES 9841:9GS4H nidx=null parent=7SKVR]
Pacitrigonia nanutarraensis
 - Pacitrigonia nanutarraensis Cox, 1961 [SYNONYM SPECIES 9840:4BW7Y nidx=null parent=6N99C]
 + Pacitrigonia nanutarraensis L. R. Cox, 1961 [SYNONYM SPECIES 9841:9GQ4H nidx=null parent=6N99C]
Palapedia
 - Palapedia P.K.L. Ng, 1993 [ACCEPTED GENUS 9840:7PP77 nidx=null]
 + Palapedia Ng, 1993 [ACCEPTED GENUS 9841:9GMGL nidx=null]
Palicus caronii
 - Palicus caronii (P. Roux, 1830) [ACCEPTED SPECIES 9840:7XTNY nidx=null]
 + Palicus caronii (Roux, 1830) [ACCEPTED SPECIES 9841:4C4YW nidx=null]
Palmadusta gracilis
 - Palmadusta gracilis [SYNONYM SPECIES 9840:75K46 nidx=null parent=4QKFG]
 + Palmadusta gracilis (Gaskoin, 1849) [SYNONYM SPECIES 9841:9GQJY nidx=null parent=4QKFG]
Paltophorus longilobus
 - Paltophorus longilobus Attems, 1952 [ACCEPTED SPECIES 9840:6TK4V nidx=null]
 + Paltophorus longilobus Attems, 1953 [SYNONYM SPECIES 9841:9GQK2 nidx=null parent=9GXCP]
Paltophorus pallidus
 - Paltophorus pallidus Attems, 1952 [ACCEPTED SPECIES 9840:4C7GB nidx=null]
 + Paltophorus pallidus Attems, 1953 [SYNONYM SPECIES 9841:9GQK4 nidx=null parent=9GXFK]
Paltophorus robustus
 - Paltophorus robustus Attems, 1952 [SYNONYM SPECIES 9840:7XTQL nidx=null parent=423FD]
 + Paltophorus robustus Attems, 1953 [SYNONYM SPECIES 9841:9GQK5 nidx=null parent=9GPTF]
Paltophorus rubripes
 - Paltophorus rubripes Attems, 1952 [ACCEPTED SPECIES 9840:4C7GF nidx=null]
 + Paltophorus rubripes Attems, 1953 [SYNONYM SPECIES 9841:9GQK6 nidx=null parent=9GXCN]
Paltophorus testaceus
 - Paltophorus testaceus Attems, 1952 [ACCEPTED SPECIES 9840:4C7GH nidx=null]
 + Paltophorus testaceus Attems, 1953 [SYNONYM SPECIES 9841:9GQK7 nidx=null parent=9GXFB]
Paltophorus yangambinus
 - Paltophorus yangambinus Attems, 1952 [SYNONYM SPECIES 9840:7XTQR nidx=null parent=46F3Q]
 + Paltophorus yangambinus Attems, 1953 [SYNONYM SPECIES 9841:9GQK8 nidx=null parent=9GPXJ]
Paludina pellucida
 - Paludina pellucida Seckendorf, 1846 [SYNONYM SPECIES 9840:8TP3Z nidx=null parent=P3DB]
 + Paludina pellucida Seckendorf, 1846 [SYNONYM SPECIES 9841:4C7TT nidx=null parent=P3FG]
Paludina regularis
 - Paludina regularis I. Lea, 1841 [SYNONYM SPECIES 9840:6TJVK nidx=null parent=QCGW]
 + Paludina regularis Bouillet, 1835 [SYNONYM SPECIES 9841:9GQKB nidx=null parent=6WCJF]
Paradacna umkae
 - Paradacna umkae Stevanović, 1951 [ACCEPTED SPECIES 9840:877V5 nidx=null]
 + Paradacna umkae Stevanović, 1980 [ACCEPTED SPECIES 9841:9GTC9 nidx=null]
Parapetalus caudatus
 - Parapetalus caudatus Gnanamuthu, 1950 [SYNONYM SPECIES 9840:7XWZ4 nidx=null parent=7YL4M]
 + Parapetalus caudatus Gnanamuthu, 1950 [SYNONYM SPECIES 9841:4D7RP nidx=null parent=4XKP8]
Paraspira (Paraspira) dupuyana
 - Paraspira (Paraspira) dupuyana (Noulet, 1854) [SYNONYM SPECIES 9840:4DCRZ nidx=null parent=674YD]
 + Paraspira (Paraspira) dupuyana [sic] [SYNONYM SPECIES 9841:9GQLH nidx=null parent=674YD]
Paraspira dupuyana
 - Paraspira dupuyana (Noulet, 1854) [SYNONYM SPECIES 9840:4DCS8 nidx=null parent=674YD]
 + Paraspira dupuyana [sic] [SYNONYM SPECIES 9841:9GQLG nidx=null parent=674YD]
Parenteroxenos dogieli
 - Parenteroxenos dogieli A. V. Ivanov, 1945 [SYNONYM SPECIES 9840:4DKW3 nidx=null parent=56RQB]
 + Parenteroxenos dogieli A. W. Ivanov, 1945 [SYNONYM SPECIES 9841:9GQLK nidx=null parent=9GRP7]
Parthenopoides massena
 - Parthenopoides massena (P. Roux, 1830) [ACCEPTED SPECIES 9840:7Y225 nidx=null]
 + Parthenopoides massena (Roux, 1830) [ACCEPTED SPECIES 9841:4DTY9 nidx=null]
Partula lineata
 - Partula lineata Lesson, 1831 [SYNONYM SPECIES 9840:76568 nidx=null parent=6TSSD]
 + Partula lineata Lesson, 1830 [SYNONYM SPECIES 9841:9GQLL nidx=null parent=6TSSD]
Pecten plica
 - Pecten plica “Sowerby, 1839” in Rombouts, 1991 [SYNONYM SPECIES 9840:7SN6S nidx=null parent=34DG3]
 + Pecten plica Sowerby, 1839 [SYNONYM SPECIES 9841:6TVJC nidx=null parent=34DG3]
Pele
 - Pele P.K.L. Ng, 2011 [ACCEPTED GENUS 9840:7PSVT nidx=null]
 + Pele Ng, 2011 [ACCEPTED GENUS 9841:9GMWN nidx=null]
Pele ramseyi
 - Pele ramseyi PKL Ng, 2011 [ACCEPTED SPECIES 9840:6TZ6T nidx=null]
 + Pele ramseyi Ng, 2011 [ACCEPTED SPECIES 9841:9GQLS nidx=null]
Pellona ditchela
 - Pellona ditchela Valenciennes, 1847 [ACCEPTED SPECIES 9840:9D2D8 nidx=null]
 + Pellona ditchela Valenciennes, 1847 [ACCEPTED SPECIES 9841:9GQLY nidx=null]
Pelodrilus violaceus
 - Pelodrilus violaceus Beddard, 1891 [SYNONYM SPECIES 9840:8TNBD nidx=null parent=8TZR5]
 + Pelodrilus violaceus Beddard, 1891 [ACCEPTED SPECIES 9841:76D5K nidx=null]
Petricola typica
 - Petricola typica G. B. Sowerby III, 1892 [SYNONYM SPECIES 9840:4FDS9 nidx=null parent=4FDPN]
 + Petricola typica (Jonas, 1844) [SYNONYM SPECIES 9841:9GR2M nidx=null parent=4FDPN]
Phaibulamon
 - Phaibulamon P.K.L. Ng, 1992 [ACCEPTED GENUS 9840:7PT86 nidx=null]
 + Phaibulamon Ng, 1992 [ACCEPTED GENUS 9841:9GMHF nidx=null]
Phalium (Semicassis) vector
 - Phalium (Semicassis) vector R. T. Abbott, 1993 [SYNONYM SPECIES 9840:9G9DX nidx=null parent=4WG7M]
 + Phalium (Semicassis) vector R. T. Abbott, 1993 [SYNONYM SPECIES 9841:9GTCM nidx=null parent=4WG7M]
Phaseolicama trapezina
 - Phaseolicama trapezina Hupé [in Gay] , 1854 [SYNONYM SPECIES 9840:4FVZF nidx=null parent=6JVPX]
 + Phaseolicama trapezina [sic] [SYNONYM SPECIES 9841:9GR2S nidx=null parent=6JVPX]
Pherusina gulsonae
 - Pherusina gulsonae [SYNONYM SPECIES 9840:4G3JG nidx=null parent=9D58]
 + Pherusina gulsonae (W. Clarke, 1850) [SYNONYM SPECIES 9841:9GR2Z nidx=null parent=9D58]
Philine sinuata
 - Philine sinuata Stimpson, 1851 [ACCEPTED SPECIES 9840:6V9Y8 nidx=null]
 + Philine sinuata W. Stimpson, 1850 [ACCEPTED SPECIES 9841:9GR3F nidx=null]
Philinopsis minor
 - Philinopsis minor (Tchang-Si, 1934) [ACCEPTED SPECIES 9840:4G6FG nidx=null]
 + Philinopsis minor (S. Tchang, 1934) [ACCEPTED SPECIES 9841:9GR3G nidx=null]
Philomedusa
 - Philomedusa [ACCEPTED GENUS 9840:6NHD nidx=null]
 + Philomedusa Müller, 1860 [ACCEPTED GENUS 9841:9GMWR nidx=null]
Phloeothrips monilicornis
 - Phloeothrips monilicornis Reuter, 1885 [SYNONYM SPECIES 9840:4GH3V nidx=null parent=5XJRX]
 + Phloeothrips monilicornis Reuter, 1880 [SYNONYM SPECIES 9841:9GSYJ nidx=null parent=5XJRX]
Phloeothrips nodicornis
 - Phloeothrips nodicornis Reuter, 1885 [SYNONYM SPECIES 9840:4GH3Y nidx=null parent=92CW]
 + Phloeothrips nodicornis Reuter, 1880 [SYNONYM SPECIES 9841:9GTCN nidx=null parent=92CW]
Phonotaenia balteata balteata
 - Phonotaenia balteata balteata (De Geer, 1778) [ACCEPTED SUBSPECIES 9840:7ZCRL nidx=null]
 + Phonotaenia balteata balteata (Degeer, 1778) [ACCEPTED SUBSPECIES 9841:9GP3X nidx=null]
Phricotelphusa gracilipes
 - Phricotelphusa gracilipes PKL Ng & HP Ng, 1987 [ACCEPTED SPECIES 9840:77CH5 nidx=null]
 + Phricotelphusa gracilipes Ng & Ng, 1987 [ACCEPTED SPECIES 9841:9GR3R nidx=null]
Pictodentalium vernedei
 - Pictodentalium vernedei (Hanley, 1860) [ACCEPTED SPECIES 9840:6VJ5Y nidx=null]
 + Pictodentalium vernedei (G. B. Sowerby II, 1860) [ACCEPTED SPECIES 9841:9GR44 nidx=null]
Pilosamon
 - Pilosamon P.K.L. Ng, 1996 [ACCEPTED GENUS 9840:7PTLH nidx=null]
 + Pilosamon Ng, 1996 [ACCEPTED GENUS 9841:9GMHQ nidx=null]
Pilumnus chani
 - Pilumnus chani PKL Ng & PH Ho, 2003 [ACCEPTED SPECIES 9840:6VJKK nidx=null]
 + Pilumnus chani Ng & Ho, 2003 [ACCEPTED SPECIES 9841:9GR4G nidx=null]
Pimodesmus aglaus
 - Pimodesmus aglaus Chamberlin, 1927 [SYNONYM SPECIES 9840:7Y7TZ nidx=null parent=3BXLC]
 + Pimodesmus aglaus Chamberlin, 1927 [ACCEPTED SPECIES 9841:6VJPV nidx=null]
Pitar rostratus
 - Pitar rostratus (Philippi, 1844) [ACCEPTED SPECIES 9840:6VMDT nidx=null]
 + Pitar rostratus (F. C. L. Koch, 1844) [SYNONYM SPECIES 9841:9GR4Q nidx=null parent=7STD6]
Plagiostyla asturiana
 - Plagiostyla asturiana P. Fischer, 1872 [SYNONYM SPECIES 9840:4JHH3 nidx=null parent=4JHXH]
 + Plagiostyla asturiana [sic] [SYNONYM SPECIES 9841:9GR4V nidx=null parent=4JHXH]
Plagiotremus rhinorhynchos
 - Plagiotremus rhinorhynchos (Bleeker, 1852) [ACCEPTED SPECIES 9840:9D42X nidx=null]
 + Plagiotremus rhinorhynchos (Bleeker, 1852) [ACCEPTED SPECIES 9841:9GR4X nidx=null]
Plakobranchus guttatus
 - Plakobranchus guttatus Stimpson, 1855 [SYNONYM SPECIES 9840:4JHZN nidx=null parent=4JHZS]
 + Plakobranchus guttatus [sic] [SYNONYM SPECIES 9841:9GR4Y nidx=null parent=4JHZS]
Planktonemertes agassizi
 - Planktonemertes agassizi ? [SYNONYM SPECIES 9840:9G5TY nidx=null parent=8549B]
 + Planktonemertes agassizi ? [SYNONYM SPECIES 9841:9GR4Z nidx=null parent=8549B]
Planorbis limayana
 - Planorbis limayana Lesson, 1830 [SYNONYM SPECIES 9840:7SQVK nidx=null parent=37N9P]
 + Planorbis limayana Lesson, 1831 [SYNONYM SPECIES 9841:9GTCS nidx=null parent=9GNTZ]
Platycerus oregonensis coerulescens
 - Platycerus oregonensis coerulescens Le Conte, 1861 [ACCEPTED SUBSPECIES 9840:7KLXN nidx=null]
 + Platycerus oregonensis coerulescens LeConte, 1861 [ACCEPTED SUBSPECIES 9841:9GP3Y nidx=null]
Pleurobranchus forskali
 - Pleurobranchus forskali [SYNONYM SPECIES 9840:7SRLV nidx=null parent=4KB3X]
 + Pleurobranchus forskali [sic] [SYNONYM SPECIES 9841:9GR65 nidx=null parent=4KB3X]
Pleurocera striata
 - Pleurocera striata (I. Lea, 1863) [ACCEPTED SPECIES 9840:4KB6S nidx=null]
 + Pleurocera striata (I. Lea, 1862) [ACCEPTED SPECIES 9841:9GR66 nidx=null]
Podarcis lilfordi gigliolii
 - Podarcis lilfordi gigliolii (Bedriaga, 1879) [ACCEPTED SUBSPECIES 9840:7HT72 nidx=null]
 + Podarcis lilfordi gigliolii (Bedriaga, 1879) [AMBIGUOUS_SYNONYM INFRASPECIFIC_NAME 9841:9GSR9 nidx=null parent=4KPHW]
 + Podarcis lilfordi gigliolii (Bedriaga, 1879) [ACCEPTED SUBSPECIES 9841:9GSRB nidx=null]
Polycerella comyna
 - Polycerella comyna Er. Marcus, 1957 [SYNONYM SPECIES 9840:9G5YL nidx=null parent=4L3W7]
 + Polycerella comyna [sic] [SYNONYM SPECIES 9841:9GR6P nidx=null parent=4L3W7]
Polynices (Neverita) recluziana
 - Polynices (Neverita) recluziana (Deshayes, 1839) [SYNONYM SPECIES 9840:9B6QY nidx=null parent=7RFN9]
 + Polynices (Neverita) recluziana [sic] [SYNONYM SPECIES 9841:9GTXS nidx=null parent=7RFN9]
Porites (Porites) lutea
 - Porites (Porites) lutea Quoy & Gaimard, 1833 [SYNONYM SPECIES 9840:935ML nidx=null parent=935MK]
 + Porites (Porites) lutea Milne Edwards & Haime, 1851 [SYNONYM SPECIES 9841:9GR95 nidx=null parent=9GR94]
Porites arenosa lutea
 - Porites arenosa lutea Quoy & Gaimard, 1833 [SYNONYM SUBSPECIES 9840:9DLNC nidx=null parent=935MK]
 + Porites arenosa lutea Milne Edwards & Haime, 1851 [SYNONYM SUBSPECIES 9841:9GS7Y nidx=null parent=9GR94]
Porites arenosa var. lutea
 - Porites arenosa var. lutea Quoy & Gaimard, 1833 [SYNONYM VARIETY 9840:93C7F nidx=null parent=935MK]
 + Porites arenosa var. lutea Milne Edwards & Haime, 1851 [SYNONYM VARIETY 9841:9GS7X nidx=null parent=9GR94]
Porites conglomerata var. lutea
 - Porites conglomerata var. lutea Quoy & Gaimard, 1833 [SYNONYM VARIETY 9840:7MHM6 nidx=null parent=935MK]
 + Porites conglomerata var. lutea Milne Edwards & Haime, 1851 [SYNONYM VARIETY 9841:9GS7Z nidx=null parent=9GR94]
Porites lutea
 - Porites lutea Quoy & Gaimard, 1833 [ACCEPTED SPECIES 9840:935MK nidx=null]
 + Porites lutea Milne Edwards & Haime, 1851 [ACCEPTED SPECIES 9841:9GR94 nidx=null]
Portunus (Xiphonectes) dayawanensis
 - Portunus (Xiphonectes) dayawanensis H.-L. Chen, 1986 [SYNONYM SPECIES 9840:8PHY9 nidx=null parent=9CBD8]
 + Portunus (Xiphonectes) dayawanensis Chen, 1986 [SYNONYM SPECIES 9841:4M2LS nidx=null parent=9CBD8]
Portunus tuberculatus
 - Portunus tuberculatus P. Roux, 1830 [SYNONYM SPECIES 9840:7YF6K nidx=null parent=7VR52]
 + Portunus tuberculatus Roux, 1830 [SYNONYM SPECIES 9841:4M2Q2 nidx=null parent=3X8B6]
Potamocarcinus tapirrhynchus
 - Potamocarcinus tapirrhynchus C Magalhães & PKL Ng, 2019 [ACCEPTED SPECIES 9840:84G6G nidx=null]
 + Potamocarcinus tapirrhynchus Magalhães & Ng, 2019 [ACCEPTED SPECIES 9841:9GR98 nidx=null]
Potamon (Potamon) johorense
 - Potamon (Potamon) johorense J. Roux, 1936 [SYNONYM SPECIES 9840:84H6X nidx=null parent=3QQB3]
 + Potamon (Potamon) johorense Roux, 1936 [SYNONYM SPECIES 9841:787MG nidx=null parent=3QQB3]
Praeexogyra
 - Praeexogyra [ACCEPTED GENUS 9840:9G9SP nidx=null]
 - Praeexogyra Charles & Maubeuge, 1953 [ACCEPTED SUPERTRIBE 9840:9G9SQ nidx=null]
 + Praeexogyra Charles & Maubeuge, 1953 [ACCEPTED GENUS 9841:9GTQ3 nidx=null]
Prepodesmus mimus
 - Prepodesmus mimus Cook, 1896 [SYNONYM SPECIES 9840:7YFCG nidx=null parent=YD28]
 + Prepodesmus mimus Cook, 1896 [ACCEPTED SPECIES 9841:6VX6J nidx=null]
Prionovolva cavanaghi
 - Prionovolva cavanaghi Schilder, 1941 [SYNONYM SPECIES 9840:7ST3H nidx=null parent=6KJ4J]
 + Prionovolva cavanaghi (Iredale, 1931) [SYNONYM SPECIES 9841:9GR9K nidx=null parent=6KJ4J]
Prorotrigonia
 - Prorotrigonia Cox, 1952 [ACCEPTED GENUS 9840:7PDJ3 nidx=null]
 + Prorotrigonia L. R. Cox, 1952 [ACCEPTED GENUS 9841:9GMXB nidx=null]
Prosodacna (Psilodon) varians
 - Prosodacna (Psilodon) varians (Andreescu, 1985) [SYNONYM SPECIES 9840:8M3SX nidx=null parent=8M4QF]
 + Prosodacna (Psilodon) varians Papaianopol & Marinescu, 1995 [SYNONYM SPECIES 9841:9GTDK nidx=null parent=9GTDL]
Prosodacna varians
 - Prosodacna varians (Andreescu, 1985) [ACCEPTED SPECIES 9840:8M4QF nidx=null]
 + Prosodacna varians Papaianopol & Marinescu, 1995 [ACCEPTED SPECIES 9841:9GTDL nidx=null]
Prunum tacoensis
 - Prunum tacoensis Espinosa & Ortea, 2014 [SYNONYM SPECIES 9840:77ZYB nidx=null parent=4N8MD]
 + Prunum tacoensis [sic] [SYNONYM SPECIES 9841:9GR9W nidx=null parent=4N8MD]
Pseudamnicola romaniana
 - Pseudamnicola romaniana Pană, 2003 [SYNONYM SPECIES 9840:7STQC nidx=null parent=4NJZ4]
 + Pseudamnicola romaniana [sic] [SYNONYM SPECIES 9841:9GR9Z nidx=null parent=4NJZ4]
Pseudocatillus getianus
 - Pseudocatillus getianus Andreescu, 1985 [ACCEPTED SPECIES 9840:8RXKD nidx=null]
 + Pseudocatillus getianus Papaianopol & Marinescu, 1995 [ACCEPTED SPECIES 9841:9GTDS nidx=null]
Pseudomalaxis zancleus
 - Pseudomalaxis zancleus (Philippi, 1844) [SYNONYM SPECIES 9840:8V974 nidx=null parent=8V973]
 + Pseudomalaxis zancleus (sic) [SYNONYM SPECIES 9841:9GRBN nidx=null parent=8V973]
Pseudopetalus caudatus
 - Pseudopetalus caudatus Gnanamuthu, 1950 [ACCEPTED SPECIES 9840:7YL4M nidx=null]
 + Pseudopetalus caudatus (Gnanamuthu, 1950) [SYNONYM SPECIES 9841:4P6JT nidx=null parent=4XKP8]
Pseudopetalus dussumieri
 - Pseudopetalus dussumieri (Rangnekar, 1957) [ACCEPTED SPECIES 9840:7YL4N nidx=null]
 + Pseudopetalus dussumieri (Rangnekar, 1957) [SYNONYM SPECIES 9841:6WFDF nidx=null parent=6YR8M]
Pseudopetalus formicoides
 - Pseudopetalus formicoides Redkar, Rangnekar & Murti, 1949 [SYNONYM SPECIES 9840:7YL4Q nidx=null parent=7ZHF3]
 + Pseudopetalus formicoides Redkar, Rangnekar & Murti, 1949 [SYNONYM SPECIES 9841:4P6JV nidx=null parent=4XKPB]
Pseudosesarma brehieri
 - Pseudosesarma brehieri P.K.L. Ng, 2018 [ACCEPTED SPECIES 9840:6WGDP nidx=null]
 + Pseudosesarma brehieri Ng, 2018 [ACCEPTED SPECIES 9841:9GRCL nidx=null]
Pseudosimnia filia
 - Pseudosimnia filia Azuma, 1974 [SYNONYM SPECIES 9840:7SVJV nidx=null parent=788X2]
 + Pseudosimnia filia Azuma, 1979 [SYNONYM SPECIES 9841:9GRCN nidx=null parent=788X2]
Psilotrigonia
 - Psilotrigonia Cox, 1952 [ACCEPTED GENUS 9840:7PF47 nidx=null]
 + Psilotrigonia L. R. Cox, 1952 [ACCEPTED GENUS 9841:9GMXP nidx=null]
Pterois russelii
 - Pterois russelii Bennett, 1831 [ACCEPTED SPECIES 9840:9G63L nidx=null]
 + Pterois russelii Bennett, 1831 [ACCEPTED SPECIES 9841:9GRD4 nidx=null]
Pterotrigonia australiensis
 - Pterotrigonia australiensis Cox, 1961 [SYNONYM SPECIES 9840:4Q6VG nidx=null parent=4T3SK]
 + Pterotrigonia australiensis L. R. Cox, 1961 [SYNONYM SPECIES 9841:9GRD7 nidx=null parent=4T3SK]
Ptychognathus lipkei
 - Ptychognathus lipkei NK Ng, 2010 [ACCEPTED SPECIES 9840:6WNM5 nidx=null]
 + Ptychognathus lipkei Ng, 2010 [ACCEPTED SPECIES 9841:9GRD9 nidx=null]
Ptychophallus bilobatus
 - Ptychophallus bilobatus C Magalhães & PKL Ng, 2019 [ACCEPTED SPECIES 9840:84G7H nidx=null]
 + Ptychophallus bilobatus Magalhães & Ng, 2019 [ACCEPTED SPECIES 9841:9GRDB nidx=null]
Pupa pagoda
 - Pupa pagoda Lesson, 1831 [SYNONYM SPECIES 9840:4QJHS nidx=null parent=3GVSW]
 + Pupa pagoda Lesson, 1830 [SYNONYM SPECIES 9841:9GRDD nidx=null parent=3GVSW]
Pupa palanga
 - Pupa palanga Lesson, 1831 [SYNONYM SPECIES 9840:8KDCJ nidx=null parent=3GZNC]
 + Pupa palanga Lesson, 1830 [SYNONYM SPECIES 9841:9GTDZ nidx=null parent=9GP3P]
Pupina laffonti
 - Pupina laffonti Ancey, 1899 [SYNONYM SPECIES 9840:7SWYY nidx=null parent=7TJ6S]
 + Pupina laffonti Ancey, 1899 [ACCEPTED SPECIES 9841:4QJRD nidx=null]
Pupina pfeifferiana
 - Pupina pfeifferiana H. Adams, 1865 [SYNONYM SPECIES 9840:7SWZT nidx=null parent=7TJ77]
 + Pupina pfeifferiana H. Adams, 1869 [SYNONYM SPECIES 9841:9GTF3 nidx=null parent=9GTHW]
Pupina solidula
 - Pupina solidula Möllendorff, 1901 [SYNONYM SPECIES 9840:7SX2G nidx=null parent=7TJ7D]
 + Pupina solidula Möllendorff, 1901 [ACCEPTED SPECIES 9841:4QJRS nidx=null]
Pupina vescoi
 - Pupina vescoi Morelet, 1862 [SYNONYM SPECIES 9840:7SX33 nidx=null parent=7TJ7R]
 + Pupina vescoi Morelet, 1862 [ACCEPTED SPECIES 9841:4QJS5 nidx=null]
Pyramidella suturalis
 - Pyramidella suturalis H. C. Lea, 1843 [SYNONYM SPECIES 9840:4QQH5 nidx=null parent=3VYL5]
 + Pyramidella suturalis H. C. Lea, 1846 [SYNONYM SPECIES 9841:9GRDK nidx=null parent=9GPFS]
Pyrene eustomus
 - Pyrene eustomus Jousseaume, 1876 [SYNONYM SPECIES 9840:4QRC8 nidx=null parent=3H8SW]
 + Pyrene eustomus Jousseaume, 1877 [SYNONYM SPECIES 9841:9GRDP nidx=null parent=3H8SW]
Pyrgiscilla boninensis
 - Pyrgiscilla boninensis (Nomura, 1936) [SYNONYM SPECIES 9840:4QSVC nidx=null parent=4QSX5]
 + Pyrgiscilla boninensis (Nomura, 1939) [SYNONYM SPECIES 9841:9GRDQ nidx=null parent=4QSX5]
Pyrgolampros subplanicostata
 - Pyrgolampros subplanicostata (Nomura, 1936) [SYNONYM SPECIES 9840:4QT96 nidx=null parent=59PBJ]
 + Pyrgolampros subplanicostata (Yokoyama, 1927) [SYNONYM SPECIES 9841:9GRDS nidx=null parent=59PBJ]
Radianthus
 - Radianthus [ACCEPTED GENUS 9840:848MM nidx=null]
 + Radianthus Kwietniewski, 1896 [ACCEPTED GENUS 9841:9GMXY nidx=null]
Ranella olivator
 - Ranella olivator “Meuschen” Mörch, 1853 [SYNONYM SPECIES 9840:7SZDN nidx=null parent=3HYRH]
 + Ranella olivator Mörch, 1853 [SYNONYM SPECIES 9841:9GRF5 nidx=null parent=3HYRH]
Ranularia (Lagena) rostratus
 - Ranularia (Lagena) rostratus “Martini” Mörch, 1853 [SYNONYM SPECIES 9840:4RFGN nidx=null parent=72GCQ]
 + Ranularia (Lagena) rostratus Mörch, 1853 [SYNONYM SPECIES 9841:9GRF6 nidx=null parent=72GCQ]
Raoulia
 - Raoulia P.K.L. Ng, 1987 [ACCEPTED GENUS 9840:7PXD6 nidx=null]
 + Raoulia Ng, 1987 [ACCEPTED GENUS 9841:9GMLF nidx=null]
Raoulia limosa
 - Raoulia limosa P.K.L. Ng, 1987 [ACCEPTED SPECIES 9840:4RJCJ nidx=null]
 + Raoulia limosa Ng, 1987 [ACCEPTED SPECIES 9841:9GRF7 nidx=null]
Rathbunamon
 - Rathbunamon P.K.L. Ng, 1996 [ACCEPTED GENUS 9840:7PXDR nidx=null]
 + Rathbunamon Ng, 1996 [ACCEPTED GENUS 9841:9GMLG nidx=null]
Rhabderemia minutula
 - Rhabderemia minutula (Carter, 1876) [ACCEPTED SPECIES 9840:7949J nidx=null]
 + Rhabderemia minutula (Carter, 1880) [SYNONYM SPECIES 9841:9GRFR nidx=null parent=78RXL]
Rhaphaulus zhuoi
 - Rhaphaulus zhuoi T. Yu, R. B. Salvador & Jarzembowski, 2021 [ACCEPTED SPECIES 9840:8N9R3 nidx=null]
 + Rhaphaulus zhuoi T. Yu, alvador & Jarzembowski, 2021 [ACCEPTED SPECIES 9841:9GTF9 nidx=null]
Rhizopoides
 - Rhizopoides P.K.L. Ng, 1987 [ACCEPTED GENUS 9840:7PXP4 nidx=null]
 + Rhizopoides Ng, 1987 [ACCEPTED GENUS 9841:9GMLS nidx=null]
Rissoa syngenes
 - Rissoa syngenes Friele & Grieg, 1901 [AMBIGUOUS_SYNONYM SPECIES 9840:4T5VM nidx=null parent=CBP3]
 + Rissoa syngenes A. E. Verrill, 1884 [SYNONYM SPECIES 9841:9GRG3 nidx=null parent=CBP3]
Scala ferussaci
 - Scala ferussaci (Audouin, 1816) [SYNONYM SPECIES 9840:7T3T2 nidx=null parent=7R7YY]
 + Scala ferussaci [sic] [SYNONYM SPECIES 9841:9GRGY nidx=null parent=7R7YY]
Scalaria clathrata
 - Scalaria clathrata [SYNONYM SPECIES 9840:79SKX nidx=null parent=6FXKR]
 + Scalaria clathrata [sic] [SYNONYM SPECIES 9841:9GRH2 nidx=null parent=6FXKR]
Scalenostoma cumingiana
 - Scalenostoma cumingiana (A. Adams, 1878) [SYNONYM SPECIES 9840:7T46P nidx=null parent=6Y4CK]
 + Scalenostoma cumingiana (G. B. Sowerby II, 1878) [SYNONYM SPECIES 9841:9GRH4 nidx=null parent=6Y4CK]
Scandarma raymondi
 - Scandarma raymondi PKL Ng, 2013 [ACCEPTED SPECIES 9840:6Y3Y9 nidx=null]
 + Scandarma raymondi Ng, 2013 [ACCEPTED SPECIES 9841:9GRH6 nidx=null]
Scarabaeus ater
 - Scarabaeus ater De Geer, 1774 [SYNONYM SPECIES 9840:6Y7SR nidx=null parent=B3NQ]
 + Scarabaeus ater Degeer, 1774 [SYNONYM SPECIES 9841:9GNZF nidx=null parent=9GN2H]
Scarabaeus cinereonebulosa
 - Scarabaeus cinereonebulosa De Geer, 1778 [SYNONYM SPECIES 9840:7YY4S nidx=null parent=7ZN6H]
 + Scarabaeus cinereonebulosa Degeer, 1778 [SYNONYM SPECIES 9841:9GNZG nidx=null parent=9GNVM]
Scarabaeus rufa
 - Scarabaeus rufa De Geer, 1778 [SYNONYM SPECIES 9840:4V2FV nidx=null parent=36SN4]
 + Scarabaeus rufa Degeer, 1778 [SYNONYM SPECIES 9841:9GNZJ nidx=null parent=9GNVH]
Scutellastra miliaris
 - Scutellastra miliaris (Philippi, 1848) [ACCEPTED SPECIES 9840:4W2RN nidx=null]
 + Scutellastra miliaris (Philippi, 1849) [ACCEPTED SPECIES 9841:9GRHK nidx=null]
Scutus granulatus
 - Scutus granulatus (Blainville, 1819) [SYNONYM SPECIES 9840:4W3JW nidx=null parent=4W3K3]
 + Scutus granulatus (Blainville, 1817) [SYNONYM SPECIES 9841:9GRHL nidx=null parent=4W3K3]
Scyliorhinus canicula
 - Scyliorhinus canicula (Linnaeus, 1758) [ACCEPTED SPECIES 9840:9G677 nidx=null]
 + Scyliorhinus canicula (Linnaeus, 1758) [ACCEPTED SPECIES 9841:9GRHM nidx=null]
Semicassis pauciruge
 - Semicassis pauciruge [SYNONYM SPECIES 9840:4WG8D nidx=null parent=6YG2G]
 + Semicassis pauciruge [sic] [SYNONYM SPECIES 9841:9GRHR nidx=null parent=6YG2G]
Septaria tesselata
 - Septaria tesselata (Lamarck, 1816) [ACCEPTED SPECIES 9840:4WR82 nidx=null]
 + Septaria tesselata [sic] [ACCEPTED SPECIES 9841:9GRHW nidx=null]
Serpulorbis margaritaceus
 - Serpulorbis margaritaceus (Chenu, 1844) [SYNONYM SPECIES 9840:6YKS8 nidx=null parent=56Q2R]
 + Serpulorbis margaritaceus (Rousseau, 1844) [SYNONYM SPECIES 9841:9GRJ8 nidx=null parent=56Q2R]
Serpulorbis novaehollandiae
 - Serpulorbis novaehollandiae (Chenu, 1843) [SYNONYM SPECIES 9840:6YL3W nidx=null parent=56Q2X]
 + Serpulorbis novaehollandiae (Rousseau, 1843) [SYNONYM SPECIES 9841:9GRJ9 nidx=null parent=56Q2X]
Serpulorbis peronii
 - Serpulorbis peronii (Chenu, 1844) [SYNONYM SPECIES 9840:4WWQH nidx=null parent=56Q33]
 + Serpulorbis peronii (Rousseau, 1844) [SYNONYM SPECIES 9841:9GRJB nidx=null parent=56Q33]
Sesarmoides balicus
 - Sesarmoides balicus P.K.L. Ng, 2002 [SYNONYM SPECIES 9840:4WZ2V nidx=null parent=3R3BN]
 + Sesarmoides balicus Ng, 2002 [SYNONYM SPECIES 9841:9GRJM nidx=null parent=3R3BN]
Sesarmoides boholano
 - Sesarmoides boholano P.K.L. Ng, 2002 [SYNONYM SPECIES 9840:4WZ2W nidx=null parent=3R3BP]
 + Sesarmoides boholano Ng, 2002 [SYNONYM SPECIES 9841:9GRJN nidx=null parent=9GP8L]
Sesarmoides guamensis
 - Sesarmoides guamensis P.K.L. Ng, 2002 [SYNONYM SPECIES 9840:4WZ32 nidx=null parent=3R3BS]
 + Sesarmoides guamensis Ng, 2002 [SYNONYM SPECIES 9841:4WZ2Z nidx=null parent=9GP8M]
Sesarmoides loyalty
 - Sesarmoides loyalty P.K.L. Ng, 2002 [SYNONYM SPECIES 9840:4WZ35 nidx=null parent=3R3BV]
 + Sesarmoides loyalty Ng, 2002 [SYNONYM SPECIES 9841:9GRJP nidx=null parent=9GP8N]
Sesarmoides novabritannia
 - Sesarmoides novabritannia P.K.L. Ng, 1988 [SYNONYM SPECIES 9840:4WZ37 nidx=null parent=3R3BX]
 + Sesarmoides novabritannia Ng, 1988 [SYNONYM SPECIES 9841:9GRJQ nidx=null parent=9GP8P]
Sesarmoides sulu
 - Sesarmoides sulu P.K.L. Ng, 2002 [SYNONYM SPECIES 9840:4WZ38 nidx=null parent=3R3BZ]
 + Sesarmoides sulu Ng, 2002 [SYNONYM SPECIES 9841:9GRJR nidx=null parent=9GP8Q]
Simenchelys parasitica
 - Simenchelys parasitica Gill, 1879 [ACCEPTED SPECIES 9840:936P5 nidx=null]
 + Simenchelys parasitica Gill, 1879 [ACCEPTED SPECIES 9841:9GRKC nidx=null]
Sinocaligus dussumieri
 - Sinocaligus dussumieri (Rangnekar, 1957) [SYNONYM SPECIES 9840:7Z393 nidx=null parent=7YL4N]
 + Sinocaligus dussumieri (Rangnekar, 1957) [ACCEPTED SPECIES 9841:6YR8M nidx=null]
Sinozolini
 - Sinozolini Deuve, 1997 [ACCEPTED TRIBE 9840:8LV4W nidx=null]
 + Sinozolini Deuve, 1997 [ACCEPTED TRIBE 9841:9GS9F nidx=null]
Sinucongeria dactylus
 - Sinucongeria dactylus (Brusina, 1902) [ACCEPTED SPECIES 9840:8784Y nidx=null]
 + Sinucongeria dactylus (Brusina, 1894) [ACCEPTED SPECIES 9841:9GTFQ nidx=null]
Sinum planatum
 - Sinum planatum [SYNONYM SPECIES 9840:4XMKB nidx=null parent=4XMKC]
 + Sinum planatum [sic] [SYNONYM SPECIES 9841:9GRKH nidx=null parent=4XMKC]
Siogamaia asamusi
 - Siogamaia asamusi Nomura, 1936 [ACCEPTED SPECIES 9840:4XMMS nidx=null]
 + Siogamaia asamusi Nomura, 1938 [ACCEPTED SPECIES 9841:9GRKJ nidx=null]
Siogamaia desiderabilis
 - Siogamaia desiderabilis Nomura, 1936 [ACCEPTED SPECIES 9840:4XMMT nidx=null]
 + Siogamaia desiderabilis Nomura, 1938 [ACCEPTED SPECIES 9841:9GRKK nidx=null]
Siogamaia minamotoi
 - Siogamaia minamotoi Nomura, 1936 [ACCEPTED SPECIES 9840:4XMMW nidx=null]
 + Siogamaia minamotoi Nomura, 1938 [ACCEPTED SPECIES 9841:9GRKL nidx=null]
Siogamaia takonourana
 - Siogamaia takonourana Nomura, 1936 [ACCEPTED SPECIES 9840:4XMN5 nidx=null]
 + Siogamaia takonourana Nomura, 1938 [ACCEPTED SPECIES 9841:9GRKM nidx=null]
Siogamaia venus
 - Siogamaia venus Nomura, 1936 [ACCEPTED SPECIES 9840:4XMN6 nidx=null]
 + Siogamaia venus Nomura, 1938 [ACCEPTED SPECIES 9841:9GRKN nidx=null]
Siphonalia cassidariaeforme
 - Siphonalia cassidariaeforme [SYNONYM SPECIES 9840:8V9CP nidx=null parent=4XP9W]
 + Siphonalia cassidariaeforme [sic] [SYNONYM SPECIES 9841:4XP9V nidx=null parent=4XP9W]
Sistrum granulatum
 - Sistrum granulatum [SYNONYM SPECIES 9840:4XRRF nidx=null parent=7C36L]
 + Sistrum granulatum [sic] [SYNONYM SPECIES 9841:9GRKZ nidx=null parent=7C36L]
Sodaliscala reedi
 - Sodaliscala reedi (Bartsch, 1945) [SYNONYM SPECIES 9840:7T658 nidx=null parent=7R7W8]
 + Sodaliscala reedi (Bartsch, 1928) [SYNONYM SPECIES 9841:9GRL2 nidx=null parent=7R7W8]
Solarium (Architectonica) trisulcatum
 - Solarium (Architectonica) trisulcatum Jousseaume, 1876 [SYNONYM SPECIES 9840:8V9D8 nidx=null parent=8V6ST]
 + Solarium (Architectonica) trisulcatum Jousseaume, 1877 [SYNONYM SPECIES 9841:9GRL6 nidx=null parent=8V6ST]
Solarium trisulcatum
 - Solarium trisulcatum Jousseaume, 1876 [SYNONYM SPECIES 9840:8V9GM nidx=null parent=8V6ST]
 + Solarium trisulcatum Jousseaume, 1877 [SYNONYM SPECIES 9841:9GRL7 nidx=null parent=8V6ST]
Solen jonesii
 - Solen jonesii [sic] [SYNONYM SPECIES 9840:9G697 nidx=null parent=4Y5LR]
 + Solen jonesii Dunker, 1862 [SYNONYM SPECIES 9841:9GRLC nidx=null parent=4Y5LR]
Solen tehuelchus
 - Solen tehuelchus Hanley, 1842 [SYNONYM SPECIES 9840:7T6NL nidx=null parent=4Y5PX]
 + Solen tehuelchus [SYNONYM SPECIES 9841:9GTFS nidx=null parent=4Y5PX]
Southerniella cylindrolaimus
 - Southerniella cylindrolaimus Chitwood, 1936 [ACCEPTED SPECIES 9840:895RH nidx=null]
 + Southerniella cylindrolaimus (Chitwood, 1936) Wieser, 1956 [ACCEPTED SPECIES 9841:9GRLF nidx=null]
Sphaerium (Herringtonium) occidentale
 - Sphaerium (Herringtonium) occidentale (Prime in Lewis, 1856) [SYNONYM SPECIES 9840:4YPJS nidx=null parent=4YPLH]
 + Sphaerium (Herringtonium) occidentale (J. Lewis, 1856) [SYNONYM SPECIES 9841:9GRLK nidx=null parent=9GRLJ]
Sphaerium nitidum
 - Sphaerium nitidum Clessin, 1877 [ACCEPTED SPECIES 9840:4YPLC nidx=null]
 + Sphaerium nitidum Clessin, 1876 [ACCEPTED SPECIES 9841:9GRLL nidx=null]
Sphaerium occidentale
 - Sphaerium occidentale (Prime, 1856) [ACCEPTED SPECIES 9840:4YPLH nidx=null]
 + Sphaerium occidentale (J. Lewis, 1856) [ACCEPTED SPECIES 9841:9GRLJ nidx=null]
Sphaerostoma jamiesoni
 - Sphaerostoma jamiesoni MacGillivray, 1843 [SYNONYM SPECIES 9840:6YVZS nidx=null parent=7TFDN]
 + Sphaerostoma jamiesoni [sic] [SYNONYM SPECIES 9841:9GRLN nidx=null parent=7TFDN]
Sphaerosyllis claparedei
 - Sphaerosyllis claparedei Ehlers, 1864 [ACCEPTED SPECIES 9840:8YWXM nidx=null]
 + Sphaerosyllis claparedei Ehlers, 1864 [ACCEPTED SPECIES 9841:9GNRX nidx=null]
Splendrillia janetae
 - Splendrillia janetae (Barnard, 1934) [SYNONYM SPECIES 9840:4Z9GW nidx=null parent=3DYCY]
 + Splendrillia janetae (Bartsch, 1934) [SYNONYM SPECIES 9841:9GRLY nidx=null parent=3DYCY]
Spurilla creutzbergi
 - Spurilla creutzbergi (Er. Marcus & Ev. Marcus, 1970) [SYNONYM SPECIES 9840:4ZDVZ nidx=null parent=LKTV]
 + Spurilla creutzbergi (Er. Marcus & Ev. Marcus, 1971) [SYNONYM SPECIES 9841:9GRM2 nidx=null parent=9GNBZ]
Stephanothrips buffai
 - Stephanothrips buffai Trybom, 1913 [ACCEPTED SPECIES 9840:52CVB nidx=null]
 + Stephanothrips buffai Trybom, 1912 [ACCEPTED SPECIES 9841:9GTG4 nidx=null]
Steromphala brocchii
 - Steromphala brocchii (Mayer in Cocconi, 1873) [ACCEPTED SPECIES 9840:7T8BK nidx=null]
 + Steromphala brocchii (Cocconi, 1873) [ACCEPTED SPECIES 9841:9GTG5 nidx=null]
Stirosoma rugosum
 - Stirosoma rugosum Attems, 1952 [ACCEPTED SPECIES 9840:52S42 nidx=null]
 + Stirosoma rugosum Attems, 1953 [ACCEPTED SPECIES 9841:9GRM7 nidx=null]
Stoliczia (Johora) intermedia
 - Stoliczia (Johora) intermedia (P.K.L. Ng, 1986) [SYNONYM SPECIES 9840:99QQY nidx=null parent=99JQ4]
 + Stoliczia (Johora) intermedia (Ng, 1986) [SYNONYM SPECIES 9841:9GRM9 nidx=null parent=9GP8F]
Stoliczia (Johora) murphyi
 - Stoliczia (Johora) murphyi (P.K.L. Ng, 1986) [SYNONYM SPECIES 9840:99QQZ nidx=null parent=99JQ5]
 + Stoliczia (Johora) murphyi (Ng, 1986) [SYNONYM SPECIES 9841:9GRMB nidx=null parent=9GP8G]
Stoliczia (Johora) singaporensis
 - Stoliczia (Johora) singaporensis (P.K.L. Ng, 1986) [SYNONYM SPECIES 9840:52TDX nidx=null parent=99JQ6]
 + Stoliczia (Johora) singaporensis (Ng, 1986) [SYNONYM SPECIES 9841:9GRMC nidx=null parent=9GP8H]
Stoliczia bella
 - Stoliczia bella PKL Ng & HP Ng, 1987 [ACCEPTED SPECIES 9840:6ZVLM nidx=null]
 + Stoliczia bella Ng & Ng, 1987 [ACCEPTED SPECIES 9841:9GRMD nidx=null]
Strongylosomides azevedoi
 - Strongylosomides azevedoi (Schubart, 1945) [SYNONYM SPECIES 9840:7Z4ZN nidx=null parent=3TNFM]
 + Strongylosomides azevedoi (Schubart, 1945) [ACCEPTED SPECIES 9841:53582 nidx=null]
Stygothelphusa
 - Stygothelphusa P.K.L. Ng, 1989 [ACCEPTED GENUS 9840:7Q37Z nidx=null]
 + Stygothelphusa Ng, 1989 [ACCEPTED GENUS 9841:9GMNW nidx=null]
Stygothelphusa cranbrooki
 - Stygothelphusa cranbrooki PKL Ng, 2013 [ACCEPTED SPECIES 9840:6ZZP6 nidx=null]
 + Stygothelphusa cranbrooki Ng, 2013 [ACCEPTED SPECIES 9841:9GRMH nidx=null]
Stylochus (Stylochus) plessissii
 - Stylochus (Stylochus) plessissii Lang, 1884 [ACCEPTED SPECIES 9840:6ZZHF nidx=null]
 + Stylochus (Stylochus) plessissii Faubel, 1983 [SYNONYM SPECIES 9841:9GRMN nidx=null parent=6ZZGN]
Styloptygma lacteolum
 - Styloptygma lacteolum Preston, 1903 [ACCEPTED SPECIES 9840:8TPC4 nidx=null]
 + Styloptygma lacteolum Preston, 1904 [ACCEPTED SPECIES 9841:9GRMS nidx=null]
Subannularia storchi
 - Subannularia storchi (L. Pfeiffer, 1861) [ACCEPTED SPECIES 9840:9GJ8W nidx=null]
 + Subannularia storchi (L. Pfeiffer, 1862) [ACCEPTED SPECIES 9841:9GX7V nidx=null]
Succinea daucina
 - Succinea daucina L. Pfeiffer, 1854 [ACCEPTED SPECIES 9840:7T9JF nidx=null]
 + Succinea daucina L. Pfeiffer, 1855 [ACCEPTED SPECIES 9841:9GT2Y nidx=null]
Sulcodius
 - Sulcodius P.F. Clark & P.K.L. Ng, 1999 [ACCEPTED GENUS 9840:7Q3BT nidx=null]
 + Sulcodius Clark & Ng, 1999 [ACCEPTED GENUS 9841:9GMNY nidx=null]
Sundathelphusa holthuisi
 - Sundathelphusa holthuisi PKL Ng, 2010 [ACCEPTED SPECIES 9840:53GBN nidx=null]
 + Sundathelphusa holthuisi Ng, 2010 [ACCEPTED SPECIES 9841:9GRMY nidx=null]
Surcula coerulea
 - Surcula coerulea Weinkauff [SYNONYM SPECIES 9840:53H8X nidx=null parent=VV2W]
 + Surcula coerulea [sic] [SYNONYM SPECIES 9841:9GRMZ nidx=null parent=VV2W]
Synaraea lutea
 - Synaraea lutea (Quoy & Gaimard, 1833) [SYNONYM SPECIES 9840:94HQB nidx=null parent=935MK]
 + Synaraea lutea (Milne Edwards & Haime, 1851) [SYNONYM SPECIES 9841:9GTG7 nidx=null parent=9GR94]
Syrnola crocata
 - Syrnola crocata (A. Adams, 1865) [ACCEPTED SPECIES 9840:542WD nidx=null]
 + Syrnola crocata (G. B. Sowerby II, 1865) [ACCEPTED SPECIES 9841:9GRN4 nidx=null]
Tapes rodatzi
 - Tapes rodatzi (Dunker, 1848) [SYNONYM SPECIES 9840:54RQX nidx=null parent=7BJY8]
 + Tapes rodatzi (Dunker, 1849) [SYNONYM SPECIES 9841:9GRN8 nidx=null parent=9GRN7]
Tegula atra
 - Tegula atra (Lesson, 1830) [ACCEPTED SPECIES 9840:554HF nidx=null]
 + Tegula atra (Lesson, 1831) [ACCEPTED SPECIES 9841:9GRNG nidx=null]
Teinostoma pallidulum
 - Teinostoma pallidulum (Carpenter, 1847) [ACCEPTED SPECIES 9840:7TBKF nidx=null]
 + Teinostoma pallidulum (P. P. Carpenter, 1857) [ACCEPTED SPECIES 9841:9GRNH nidx=null]
Tellina (Angulus) agilis
 - Tellina (Angulus) agilis Stimpson, 1857 [SYNONYM SPECIES 9840:5573T nidx=null parent=CRFR]
 + Tellina (Angulus) agilis W. Stimpson, 1858 [SYNONYM SPECIES 9841:9GRNJ nidx=null parent=9GN3S]
Tellina agilis
 - Tellina agilis Stimpson, 1857 [SYNONYM SPECIES 9840:7BPMC nidx=null parent=CRFR]
 + Tellina agilis W. Stimpson, 1858 [SYNONYM SPECIES 9841:9GRNK nidx=null parent=9GN3S]
Terebra maculata roosevelti
 - Terebra maculata roosevelti Bartsch & Rehder, 1970 [SYNONYM SUBSPECIES 9840:5LG3S nidx=null parent=4BFSK]
 + Terebra maculata roosevelti Bartsch & Rehder, 1939 [SYNONYM SUBSPECIES 9841:9GS5R nidx=null parent=4BFSK]
Terrapotamon
 - Terrapotamon P.K.L. Ng, 1986 [ACCEPTED GENUS 9840:7Q3ZS nidx=null]
 + Terrapotamon Ng, 1986 [ACCEPTED GENUS 9841:9GMPX nidx=null]
Terrathelphusa
 - Terrathelphusa P.K.L. Ng, 1989 [ACCEPTED GENUS 9840:7Q3ZV nidx=null]
 + Terrathelphusa Ng, 1989 [ACCEPTED GENUS 9841:9GMPY nidx=null]
Thalamita yoronensis
 - Thalamita yoronensis T. Sakai, 1969 [SYNONYM SPECIES 9840:7Z5MX nidx=null parent=84GDY]
 + Thalamita yoronensis Sakai, 1969 [SYNONYM SPECIES 9841:55Z7N nidx=null parent=84GDY]
Thelphusula capillodigitus
 - Thelphusula capillodigitus PKL Ng & PYC Ng, 2018 [ACCEPTED SPECIES 9840:84HCY nidx=null]
 + Thelphusula capillodigitus Ng & Ng, 2018 [ACCEPTED SPECIES 9841:9GTHC nidx=null]
Thrips alni tenella
 - Thrips alni tenella Trybom, 1913 [SYNONYM INFRASPECIFIC_NAME 9840:5F847 nidx=null parent=56MMX]
 + Thrips alni tenella Trybom, 1912 [SYNONYM INFRASPECIFIC_NAME 9841:9GTJP nidx=null parent=56MMX]
Thyonicola dogieli
 - Thyonicola dogieli (A. V. Ivanov, 1945) [ACCEPTED SPECIES 9840:56RQB nidx=null]
 + Thyonicola dogieli (A. W. Ivanov, 1945) [ACCEPTED SPECIES 9841:9GRP7 nidx=null]
Thysanoptera
 - Thysanoptera Haliday, 1836 [ACCEPTED ORDER 9840:622VS nidx=null]
 + Thysanoptera Haliday, 1836 [ACCEPTED ORDER 9841:9GKWK nidx=null]
Tidasus bananicus
 - Tidasus bananicus Attems, 1952 [ACCEPTED SPECIES 9840:56VRC nidx=null]
 + Tidasus bananicus Attems, 1953 [ACCEPTED SPECIES 9841:9GRP8 nidx=null]
Timoclea decorata
 - Timoclea decorata (Broderip & G. B. Sowerby I, 1829) [ACCEPTED SPECIES 9840:7CBM5 nidx=null]
 + Timoclea decorata (Broderip & G. B. Sowerby I, 1830) [ACCEPTED SPECIES 9841:9GRPM nidx=null]
Torhusa
 - Torhusa P.K.L. Ng, 1997 [ACCEPTED GENUS 9840:7Q4Q5 nidx=null]
 + Torhusa Ng, 1997 [ACCEPTED GENUS 9841:9GMQQ nidx=null]
Trachycardium impolitum
 - Trachycardium impolitum (G. B. Sowerby II, 1841) [SYNONYM SPECIES 9840:57PTF nidx=null parent=9PVQ]
 + Trachycardium impolitum (G. B. Sowerby II, 1834) [SYNONYM SPECIES 9841:9GRPV nidx=null parent=9PVQ]
Trapezia ferruginea var. ceylonica
 - Trapezia ferruginea var. ceylonica PS Chen, 1933 [SYNONYM VARIETY 9840:5RVB9 nidx=null parent=57XZW]
 + Trapezia ferruginea var. ceylonica Chen, 1993 [SYNONYM VARIETY 9841:9GS84 nidx=null parent=57XZW]
Trichobezoares
 - Trichobezoares P.K.L. Ng, 2018 [ACCEPTED GENUS 9840:7Q53B nidx=null]
 + Trichobezoares Ng, 2018 [ACCEPTED GENUS 9841:9GMZF nidx=null]
Trichothrips zuluensis
 - Trichothrips zuluensis Trybom, 1913 [SYNONYM SPECIES 9840:58LBH nidx=null parent=6MDVH]
 + Trichothrips zuluensis Trybom, 1912 [SYNONYM SPECIES 9841:9GTHS nidx=null parent=6MDVH]
Tricolia perforata
 - Tricolia perforata (Philippi, 1848) [SYNONYM SPECIES 9840:58MSJ nidx=null parent=92YRL]
 + Tricolia perforata (Philippi, 1849) [SYNONYM SPECIES 9841:9GRQ2 nidx=null parent=92YRL]
Trigonia (Megatrigonia) obesa
 - Trigonia (Megatrigonia) obesa (van Heopen, 1929) [SYNONYM SPECIES 9840:9G6GC nidx=null parent=3YZT8]
 + Trigonia (Megatrigonia) obesa (van Hoepen, 1929) [SYNONYM SPECIES 9841:9GRQD nidx=null parent=3YZT8]
Trigonia flexicostata
 - Trigonia flexicostata Burwash, 1913 [SYNONYM SPECIES 9840:8L8TZ nidx=null parent=8M54N]
 + Trigonia flexicostata Burwash, 1914 [SYNONYM SPECIES 9841:9GRQ9 nidx=null parent=9GSXW]
Trigonia spinifera
 - Trigonia spinifera d'Orbigny, 1849 [SYNONYM SPECIES 9840:937NS nidx=null parent=94LTV]
 + Trigonia spinifera d'Orbigny, 1850 [SYNONYM SPECIES 9841:9GRQH nidx=null parent=9GTWL]
Trigonia wilckensi
 - Trigonia wilckensi Feruglio, 1936 [SYNONYM SPECIES 9840:58RNX nidx=null parent=3JWBY]
 + Trigonia wilckensi Feruglio, 1937 [SYNONYM SPECIES 9841:9GRQK nidx=null parent=3JWBY]
Trigonioididae
 - Trigonioididae Cox, 1952 [ACCEPTED FAMILY 9840:7NX7L nidx=null]
 + Trigonioididae L. R. Cox, 1952 [ACCEPTED FAMILY 9841:9GLYJ nidx=null]
Trigonioidinae
 - Trigonioidinae Cox, 1952 [ACCEPTED SUBFAMILY 9840:86228 nidx=null]
 + Trigonioidinae L. R. Cox, 1952 [ACCEPTED SUBFAMILY 9841:9GSMH nidx=null]
Trigonioidoidea
 - Trigonioidoidea Cox, 1952 [ACCEPTED SUPERFAMILY 9840:7NW96 nidx=null]
 + Trigonioidoidea L. R. Cox, 1952 [ACCEPTED SUPERFAMILY 9841:9GLWL nidx=null]
Triodopsis dalli
 - Triodopsis dalli (Stearns, 1885) [SYNONYM SPECIES 9840:7TDPX nidx=null parent=7G2T4]
 + Triodopsis dalli [sic] [SYNONYM SPECIES 9841:9GRQR nidx=null parent=7G2T4]
Triton corrugatus
 - Triton corrugatus Lamarck, 1816 [SYNONYM SPECIES 9840:7TFB9 nidx=null parent=448YC]
 + Triton corrugatus [sic] [SYNONYM SPECIES 9841:9GRQY nidx=null parent=448YC]
Trochus (Clanculus) spadiceus
 - Trochus (Clanculus) spadiceus Philippi, 1848 [SYNONYM SPECIES 9840:7TFYB nidx=null parent=VQT8]
 + Trochus (Clanculus) spadiceus Philippi, 1849 [SYNONYM SPECIES 9841:9GTHT nidx=null parent=9GNKR]
Trochus dama
 - Trochus dama Philippi, 1848 [SYNONYM SPECIES 9840:59832 nidx=null parent=6RP3J]
 + Trochus dama Philippi, 1849 [SYNONYM SPECIES 9841:9GRR3 nidx=null parent=6RP3J]
Trochus nebulosus
 - Trochus nebulosus Philippi, 1848 [SYNONYM SPECIES 9840:5988V nidx=null parent=52G39]
 + Trochus nebulosus Philippi, 1849 [SYNONYM SPECIES 9841:9GRR4 nidx=null parent=52G39]
Tryonia circumstriata
 - Tryonia circumstriata (Leonard & Ho, 1960) [ACCEPTED SPECIES 9840:59F6R nidx=null]
 + Tryonia circumstriata (A. B. Leonard & Ho, 1960) [ACCEPTED SPECIES 9841:9GRRL nidx=null]
Tugonia nobilis
 - Tugonia nobilis H. Adams & A. Adams, 1856 [ACCEPTED SPECIES 9840:59KNC nidx=null]
 + Tugonia nobilis Reeve, 1863 [ACCEPTED SPECIES 9841:9GRRP nidx=null]
Tugonia semisulcata
 - Tugonia semisulcata H. Adams & A. Adams, 1856 [SYNONYM SPECIES 9840:59KND nidx=null parent=59KNC]
 + Tugonia semisulcata Reeve, 1863 [SYNONYM SPECIES 9841:9GRRQ nidx=null parent=9GRRP]
Turbo sangarensis
 - Turbo sangarensis Schrenck, 1861 [SYNONYM SPECIES 9840:59N88 nidx=null parent=3MDT5]
 + Turbo sangarensis Schrenck, 1862 [SYNONYM SPECIES 9841:9GRRX nidx=null parent=3MDT5]
Turbonilla cura
 - Turbonilla cura Nomura, 1936 [ACCEPTED SPECIES 9840:59NLC nidx=null]
 + Turbonilla cura Nomura, 1937 [ACCEPTED SPECIES 9841:9GRS2 nidx=null]
Turbonilla lordi
 - Turbonilla lordi (E. A. Smith, 1880) [SYNONYM SPECIES 9840:59NX8 nidx=null parent=59NX9]
 + Turbonilla lordi [sic] [SYNONYM SPECIES 9841:9GRS9 nidx=null parent=59NX9]
Turritella banksii
 - Turritella banksii Gray in Reeve, 1849 [ACCEPTED SPECIES 9840:59QTF nidx=null]
 + Turritella banksii Reeve, 1849 [ACCEPTED SPECIES 9841:9GRSS nidx=null]
Tylodesmus
 - Tylodesmus Cook, 1896 [ACCEPTED GENUS 9840:7Q5LJ nidx=null]
 - Tylodesmus Cook, 1896 [PROVISIONALLY_ACCEPTED GENUS 9840:8KZDR nidx=null]
 + Tylodesmus Cook, 1895 [ACCEPTED GENUS 9841:9GMRH nidx=null]
 + Tylodesmus Cook, 1895 [PROVISIONALLY_ACCEPTED GENUS 9841:9GMRJ nidx=null]
Tylodesmus liberiensis calathus
 - Tylodesmus liberiensis calathus (Schubart, 1955) [SYNONYM SUBSPECIES 9840:8N5YH nidx=null parent=8NB82]
 + Tylodesmus liberiensis calathus (Schubart, 1955) [ACCEPTED SUBSPECIES 9841:5F9WN nidx=null]
Tylotoechus pfeifferianus
 - Tylotoechus pfeifferianus (H. Adams, 1865) [ACCEPTED SPECIES 9840:7TJ77 nidx=null]
 + Tylotoechus pfeifferianus (H. Adams, 1869) [ACCEPTED SPECIES 9841:9GTHW nidx=null]
Tympanotonus fuscatus
 - Tympanotonus fuscatus (Linnaeus, 1758) [SYNONYM SPECIES 9840:7DB5D nidx=null parent=7DB37]
 + Tympanotonus fuscatus [sic] [SYNONYM SPECIES 9841:9GRSW nidx=null parent=7DB37]
Tympanotonus radula
 - Tympanotonus radula (Linnaeus, 1758) [SYNONYM SPECIES 9840:7DB5C nidx=null parent=7DB37]
 + Tympanotonus radula [sic] [SYNONYM SPECIES 9841:9GRSX nidx=null parent=7DB37]
Typhlocarcinops yui
 - Typhlocarcinops yui PKL Ng & PH Ho, 2003 [ACCEPTED SPECIES 9840:59VHF nidx=null]
 + Typhlocarcinops yui Ng & Ho, 2003 [ACCEPTED SPECIES 9841:9GRSY nidx=null]
Urothrips bagnalli
 - Urothrips bagnalli Trybom, 1913 [ACCEPTED SPECIES 9840:7DZR6 nidx=null]
 + Urothrips bagnalli Trybom, 1912 [ACCEPTED SPECIES 9841:9GTJ6 nidx=null]
Ursus arctos beringianus
 - Ursus arctos beringianus Middendorff, 1851 [ACCEPTED SUBSPECIES 9840:5LPWP nidx=null]
 + Ursus arctos beringianus Middendorff, 1853 [ACCEPTED SUBSPECIES 9841:9GSW3 nidx=null]
Vaginulus limayanus
 - Vaginulus limayanus Lesson, 1830 [SYNONYM SPECIES 9840:7TKKQ nidx=null parent=7RP2K]
 + Vaginulus limayanus Lesson, 1831 [SYNONYM SPECIES 9841:9GTJ7 nidx=null parent=9GT8Z]
Valvata bourguignati
 - Valvata bourguignati Letourneux, 1869 [SYNONYM SPECIES 9840:8TXL2 nidx=null parent=3Q792]
 + Valvata bourguignati A. Letourneux, 1869 [SYNONYM SPECIES 9841:9GT67 nidx=null parent=9GP7V]
Vellumnus
 - Vellumnus P.K.L. Ng, 2010 [ACCEPTED GENUS 9840:7Q685 nidx=null]
 + Vellumnus Ng, 2010 [ACCEPTED GENUS 9841:9GMSF nidx=null]
Venus (Cytherea) kingii
 - Venus (Cytherea) kingii (Gray in King, 1827) sensu Römer, 1867 [SYNONYM SPECIES 9840:7FMZ5 nidx=null parent=6VMC4]
 + Venus (Cytherea) kingii (J. E. Gray, 1826) [SYNONYM SPECIES 9841:9GRWK nidx=null parent=6VMC4]
Venus kennerleyi
 - Venus kennerleyi Carpenter in Reeve, 1863 [SYNONYM SPECIES 9840:7FMCQ nidx=null parent=6MG8V]
 + Venus kennerleyi Reeve, 1863 [SYNONYM SPECIES 9841:9GRWN nidx=null parent=6MG8V]
Venus puella
 - Venus puella L. Pfeiffer in Philippi, 1846 [SYNONYM SPECIES 9840:7FMJC nidx=null parent=67753]
 + Venus puella Philippi, 1846 [SYNONYM SPECIES 9841:9GRWP nidx=null parent=9GN6W]
Vertigo cylindrica
 - Vertigo cylindrica J. B. Férussac, 1807 [SYNONYM SPECIES 9840:7TLJJ nidx=null parent=7CX5D]
 + Vertigo cylindrica A. Férussac, 1807 [SYNONYM SPECIES 9841:9GT68 nidx=null parent=7CX5D]
Vilasina
 - Vilasina Bartsch in Scarlato, 1960 [ACCEPTED GENUS 9840:7PKT8 nidx=null]
 + Vilasina Scarlato, 1960 [ACCEPTED GENUS 9841:9GMSW nidx=null]
Vilasina pillula
 - Vilasina pillula Bartsch in Scarlato, 1960 [ACCEPTED SPECIES 9840:7FSDS nidx=null]
 + Vilasina pillula Scarlato, 1960 [ACCEPTED SPECIES 9841:9GRWX nidx=null]
Viminella flagellum
 - Viminella flagellum (Johnson, 1863) [SYNONYM SPECIES 9840:857GF nidx=null parent=39BQ7]
 + Viminella flagellum (Johnson, 1863) [ACCEPTED SPECIES 9841:7G3NX nidx=null]
Vivipara sadleri
 - Vivipara sadleri (Stur, 1862) [SYNONYM SPECIES 9840:5BN88 nidx=null parent=5BNML]
 + Vivipara sadleri [sic] [SYNONYM SPECIES 9841:9GRX6 nidx=null parent=5BNML]
Viviparus (Protulotoma) sadleri
 - Viviparus (Protulotoma) sadleri (Stur, 1862) [SYNONYM SPECIES 9840:5BN9S nidx=null parent=5BNML]
 + Viviparus (Protulotoma) sadleri [sic] [SYNONYM SPECIES 9841:9GRX7 nidx=null parent=5BNML]
Viviparus sadleri
 - Viviparus sadleri Neumayr, 1869 [SYNONYM SPECIES 9840:5BNMK nidx=null parent=5BNML]
 + Viviparus sadleri [sic] [SYNONYM SPECIES 9841:9GRX8 nidx=null parent=5BNML]
Volvulella ovulina
 - Volvulella ovulina (A. Adams, 1850) [ACCEPTED SPECIES 9840:5BQSP nidx=null]
 + Volvulella ovulina (A. Adams, 1862) [ACCEPTED SPECIES 9841:9GRXF nidx=null]
Zafra purpurea
 - Zafra purpurea C. B. Adams, 1873 [SYNONYM SPECIES 9840:7GBRQ nidx=null parent=4WGLH]
 + Zafra purpurea H. Adams, 1873 [SYNONYM SPECIES 9841:9GRXN nidx=null parent=4WGLH]
Zanthopsidae
 - Zanthopsidae Via, 1959 [ACCEPTED FAMILY 9840:9F4G6 nidx=null]
 + Zanthopsidae Vía Boada, 1959 [ACCEPTED FAMILY 9841:9GT9M nidx=null]
Zaphella ambulatia
 - Zaphella ambulatia (Nomura, 1938) [SYNONYM SPECIES 9840:5CWXR nidx=null parent=5W693]
 + Zaphella ambulatia (Laseron, 1951) [SYNONYM SPECIES 9841:9GRXP nidx=null parent=5W693]
Zygina (Zygina)
 - Zygina (Zygina) Fieber, 1866 [ACCEPTED SUBGENUS 9840:8JMZB nidx=null]
 + Zygina (Zygina) Fieber, 1866 [ACCEPTED SUBGENUS 9841:9GMVP nidx=null]