taxonID	type	description	language	source
F67082097211FF962BC1FA6AFBF7FE00.taxon	type_taxon	Type species Cymothoa parallela Otto, 1828 (by subsequent designation, see Martin et al. 2015 a).	en	Aneesh, Panakkool Thamban, Helna, Ameri Kottarathil, Kumar, Appukuttannair Biju (2022): Redescription and further report of two buccal attaching fish parasitic cymothoids, Ceratothoa carinata (Bianconi, 1869) and Cymothoa bychowskyi Avdeev, 1979 (Crustacea: Isopoda) with a new record from the southern India Ocean. Journal of Natural History 56 (17 - 20): 1063-1089, DOI: 10.1080/00222933.2022.2099318, URL: http://dx.doi.org/10.1080/00222933.2022.2099318
F67082097212FF972BA0FA5AFD33FE52.taxon	description	(Figures 1 – 4)	en	Aneesh, Panakkool Thamban, Helna, Ameri Kottarathil, Kumar, Appukuttannair Biju (2022): Redescription and further report of two buccal attaching fish parasitic cymothoids, Ceratothoa carinata (Bianconi, 1869) and Cymothoa bychowskyi Avdeev, 1979 (Crustacea: Isopoda) with a new record from the southern India Ocean. Journal of Natural History 56 (17 - 20): 1063-1089, DOI: 10.1080/00222933.2022.2099318, URL: http://dx.doi.org/10.1080/00222933.2022.2099318
F67082097218FF9D2BD1F982FC43FF24.taxon	type_taxon	Type species Oniscus oestrum Fabricius, 1793; by subsequent designation (Kussakin 1979).	en	Aneesh, Panakkool Thamban, Helna, Ameri Kottarathil, Kumar, Appukuttannair Biju (2022): Redescription and further report of two buccal attaching fish parasitic cymothoids, Ceratothoa carinata (Bianconi, 1869) and Cymothoa bychowskyi Avdeev, 1979 (Crustacea: Isopoda) with a new record from the southern India Ocean. Journal of Natural History 56 (17 - 20): 1063-1089, DOI: 10.1080/00222933.2022.2099318, URL: http://dx.doi.org/10.1080/00222933.2022.2099318
F67082097219FF852BA1FBF7FC34FAE5.taxon	description	(Figures 5 – 11)	en	Aneesh, Panakkool Thamban, Helna, Ameri Kottarathil, Kumar, Appukuttannair Biju (2022): Redescription and further report of two buccal attaching fish parasitic cymothoids, Ceratothoa carinata (Bianconi, 1869) and Cymothoa bychowskyi Avdeev, 1979 (Crustacea: Isopoda) with a new record from the southern India Ocean. Journal of Natural History 56 (17 - 20): 1063-1089, DOI: 10.1080/00222933.2022.2099318, URL: http://dx.doi.org/10.1080/00222933.2022.2099318
F67082097219FF852BA1FBF7FC34FAE5.taxon	materials_examined	Material examined Four females and two males. Voucher specimens All from Fistularia petimba Lacepède, 1803, 1 ♀ (ovig., 24.5 mm L, 11.5 mm W), (DABFUK / AR-IS- 02); 1 ♂ (14.5 mm L, 7.0 mm W), (Reg. no. DABFUK / AR-IS- 03); 1 ♀ (ovig., 24.0 mm L, 11.5 mm W )) (Reg. no. DABFUK / AR-IS- 26); 1 ♀ (ovig., 25.0 mm L, 12.0 mm W )) (Reg. no. DABFUK / AR-IS- 27) partially dissected; 1 ♂ (14.0 mm L, 6.8 mm W), (Reg. no. DABFUK / AR-IS - 28) partially dissected, coll. P. T. Aneesh from Tuticorin, Tamil Nadu, south-eastern India, 26 May 2018.	en	Aneesh, Panakkool Thamban, Helna, Ameri Kottarathil, Kumar, Appukuttannair Biju (2022): Redescription and further report of two buccal attaching fish parasitic cymothoids, Ceratothoa carinata (Bianconi, 1869) and Cymothoa bychowskyi Avdeev, 1979 (Crustacea: Isopoda) with a new record from the southern India Ocean. Journal of Natural History 56 (17 - 20): 1063-1089, DOI: 10.1080/00222933.2022.2099318, URL: http://dx.doi.org/10.1080/00222933.2022.2099318
F67082097219FF852BA1FBF7FC34FAE5.taxon	description	Description Ovigerous female (Figures 5 – 9). Body elongate, 2.1 times as long as greatest width, dorsal surfaces rugose, widest at pereonite 4, narrowest at pereonite 1, lateral margins slightly convex. Cephalon 0.4 times as long as wide, visible in dorsal view, anterior margin rounded, immersed in pereonite 1. Frontal margin rounded to form blunt rostrum and thickened, ventrally folded. Eyes not visible. Pereonite 1 with slight indentations, anterior border slightly indented, anterolateral angle rounded, posterior margins of pereonites smooth, slightly curved laterally. Coxae 2 – 3 with posteroventral angles acute, posteriorly produced; 4 – 7 rounded. Pereonites 1 – 4 increasing in length and width; 5 – 7 decreasing in width; 5 – 6 subequal in length; pereonite 7 shortest. Pleon with all pleonites visible; pleonite 1 as wide as pleonite 2; pleonites increasing in width from 3 to 5; pleonites posterior margin smooth; posterolateral angles of pleonite 2 rounded, not posteriorly produced. Pleonite 5 posterior margin indented medially. Pleotelson 0.6 times as long as anterior width, dorsal surface with medial furrow, lateral margins weakly concave, posterior margin sub-truncate, without median point. Antennule stouter than antenna, comprised of 8 articles; article 1, 0.6 times as long as wide; article 2, as long as article 1; article 3, 1.4 times as long as article 1, 1.2 times as long as wide; articles 4 – 8 gradually decreasing in width; article 8 with 8 – 10 short, simple terminal setae. Antenna comprised of 9 articles; article 1, 0.6 times as long as wide; article 2, 0.7 times as long as wide, 1 time as long as article 1; article 3, 0.8 times as wide as article 2; article 4 subequal to 3; articles 5 – 9 gradually decreasing in width; article 9 with 8 – 10 short, simple terminal setae. Mandibular process ending in acute incisor, mandible palp article 2 without distolateral setae, article 3 without terminal setae. Maxillule simple, with 4 terminal RS. Maxilla mesial lobe partly fused to lateral lobe; lateral lobe and mesial lobe with 4 recurved RS each. Maxilliped weakly segmented, with lamellar oostegite lobe, palp article 2 without setae, article 3 with 4 recurved RS; oostegites lobes without marginal plumose setae. Pereopod 1 basis 1.4 times as long as greatest width; ischium 0.7 times as long as basis, 1.7 times as long as greatest width; merus proximal margin without bulbous protrusion; carpus with straight proximal margin; propodus 1.7 times as long as wide; dactylus slender, 1.1 times as long as propodus, 2.2 times as long as basal width. Pereopod 2 basis 1.3 times as long as greatest width; ischium 0.6 times as long as basis; merus 0.7 times as long as wide, 0.4 times as long as ischium; propodus 1.2 times as long as wide; dactylus slender, 1.7 times as long as propodus, 2 times as long as basal width. Pereopod 3 basis 1.3 times as long as greatest width; propodus 1.2 times as long as wide, 0.5 times as long as basis; dactylus slender, 1.7 times as long as propodus, 2.3 times as long as basal width. Pereopod 4 basis as long as greatest width; ischium 0.6 times as long as basis, 1.5 times as long as greatest width; merus 0.5 times as long as ischium; propodus 1.1 times as long as wide; dactylus, 2.1 times as long as propodus, 2.8 times as long as basal width. Pereopod 5 basis 1.1 times as long as greatest width; ischium 0.6 times as long as basis; propodus 1.3 times as long as wide; dactylus slender, 1.9 times as long as propodus, 2.1 times as long as basal width. Pereopod 6 basis as long as greatest width, ischium 0.7 times as long as basis, propodus 1.3 times as long as wide, dactylus 1.7 times as long as propodus. Pereopod 7 basis 1.1 times as long as greatest width; ischium 0.6 times as long as basis; merus as long as wide, 0.5 times as long as ischium; propodus 0.6 times as long as ischium, 1.3 times as long as wide; dactylus, 1.6 times as long as propodus, 2.6 times as long as basal width. Pleopods peduncle without setae, exopod larger than endopod. Pleopod 1 exopod as long as wide, lateral margin weakly convex; endopod as long as wide, lateral margin weakly concave, distally narrowly rounded, mesial margin straight, peduncle 0.4 times as wide as long, without retinaculae. Pleopod 2 exopod 1.1 times as long as wide, lateral margin weakly convex; endopod 1.3 times as long as wide, lateral margin weakly concave, distally narrowly rounded, mesial margin straight, peduncle 0.3 times as wide as long, without retinaculae. Pleopods 3 – 5 similar to pleopod 2, mesial margins becoming more strongly produced. Pleopods 3 – 5 endopods with large fleshy folds; folds well developed in pleopods 4 and 5. Uropod 0.8 times the length of pleotelson, peduncle 0.7 times longer than exopod, 0.8 times as long as wide, peduncle lateral margin without setae; rami not extending beyond pleotelson, marginal setae absent, apices narrowly rounded. Endopod apically rounded, 4.4 times as long as greatest width, 0.8 times as long as exopod, lateral margin weakly convex, mesial margin weakly convex. Exopod extending to almost end of endopod, 5.4 times as long as greatest width, apically rounded, lateral margin weakly convex, mesial margin weakly convex. Male (Figures 10 – 11). Similar to female but smaller, body oval, elongate, 2.1 times as long as wide. Cephalon visible in dorsal view, 0.9 times as long as wide. Pereonite 1 anterolateral margins slightly produced. Pleotelson 2 times as wide as long; posteriorly rounded. Pleopods simple, with fewer folds on endopod. Pleopod 2 with appendix masculina, as long as endopod. Uropod 0.7 times the length of pleotelson, peduncle 0.7 times longer than exopod, 0.7 times as long as wide, peduncle lateral margin without setae; rami not extending beyond pleotelson, marginal setae absent, apices narrowly rounded. Endopod apically rounded, 0.8 times as long as exopod, lateral margin weakly convex, mesial margin weakly convex. Exopod extending to almost end of endopod, apically rounded, lateral margin weakly convex, mesial margin weakly convex.	en	Aneesh, Panakkool Thamban, Helna, Ameri Kottarathil, Kumar, Appukuttannair Biju (2022): Redescription and further report of two buccal attaching fish parasitic cymothoids, Ceratothoa carinata (Bianconi, 1869) and Cymothoa bychowskyi Avdeev, 1979 (Crustacea: Isopoda) with a new record from the southern India Ocean. Journal of Natural History 56 (17 - 20): 1063-1089, DOI: 10.1080/00222933.2022.2099318, URL: http://dx.doi.org/10.1080/00222933.2022.2099318
F67082097219FF852BA1FBF7FC34FAE5.taxon	biology_ecology	Hosts Known only from the family Fistulariidae: Fistularia petimba Lacepède, 1803 (see Avdeev 1979 a; Williams et al. 2000; Rameshkumar et al. 2013; present study) and blue spotted cornetfish Fistularia commersonii Rüppell, 1838 (Williams et al. 2000).	en	Aneesh, Panakkool Thamban, Helna, Ameri Kottarathil, Kumar, Appukuttannair Biju (2022): Redescription and further report of two buccal attaching fish parasitic cymothoids, Ceratothoa carinata (Bianconi, 1869) and Cymothoa bychowskyi Avdeev, 1979 (Crustacea: Isopoda) with a new record from the southern India Ocean. Journal of Natural History 56 (17 - 20): 1063-1089, DOI: 10.1080/00222933.2022.2099318, URL: http://dx.doi.org/10.1080/00222933.2022.2099318
F67082097219FF852BA1FBF7FC34FAE5.taxon	distribution	Distribution North-western and Western Australia (Avdeev 1979 a; Kensley 2001); Guam, Micronesia (Williams et al. 2000), Okinawa, Japan (Williams et al. 2000) and Lakshadweep, India (Rameshkumar et al. 2013); south-west coast India (present study).	en	Aneesh, Panakkool Thamban, Helna, Ameri Kottarathil, Kumar, Appukuttannair Biju (2022): Redescription and further report of two buccal attaching fish parasitic cymothoids, Ceratothoa carinata (Bianconi, 1869) and Cymothoa bychowskyi Avdeev, 1979 (Crustacea: Isopoda) with a new record from the southern India Ocean. Journal of Natural History 56 (17 - 20): 1063-1089, DOI: 10.1080/00222933.2022.2099318, URL: http://dx.doi.org/10.1080/00222933.2022.2099318
