taxonID	type	description	language	source
7B5832749EFD5408BE905A11F79615A0.taxon	diagnosis	Diagnosis. Shell dextral or sinistral, medium to large in size (width about 25 to 75 mm) and monochrome to with stripes, or banding patterns. Apertural lip simple to slightly thickened in adult snails; umbilicus open. Genitalia include penial sheath, straight or coiled epiphallic caecum and short flagellum; penial verge may be present or absent. Dart apparatus well developed; gametolytic sac bulbous to elliptical-shaped (without distinct duct). Mantle edge well developed with or without shell lobes. Jaw smooth (without vertical ribs) and crescentic. Radula with unicuspid central teeth, and bicuspid lateral and marginal teeth.	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
E80A2E8DC02D5D248AF307DD2235C9DF.taxon	description	Figures 1 B, C, 2 C, 4, 10 D, E	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
E80A2E8DC02D5D248AF307DD2235C9DF.taxon	materials_examined	Material examined. Thailand: Tam Chiang Dao, Chiang Mai: CUMZ 4550 (1 shell), CUMZ 4558 (5 shells). Wang Chao Waterfall, Kampangphet: CUMZ 4641 (4 shells). Klong Lann National Park, Kampangphet: CUMZ 4579 (2 specimens in ethanol). Kaeng Jed Kwae, Watbot, Phitsanuloke: CUMZ 4638 (7 shells). Tam Wang Daeng, Nern Maprang, Phitsanuloke: CUMZ 4632 (1 shell). Khao Nang Rum, Huay Kla Klang National Park, Uthaithani: CUMZ 4502 (6 shells), CUMZ 4510 (3 shells), CUMZ 4538 (3 shells), CUMZ 4541 (6 shells), CUMZ 4607 (6 shells), CUMZ 4610 (9 shells), CUMZ 4611 (3 shells). Jed Sow Noi Waterfall, Muaklek, Saraburi: CUMZ 4548 (3 shells). Pu Kare Botanic Garden, Saraburi: CUMZ 4505 (4 shells), CUMZ 4506 (1 shell), CUMZ 4534 (5 shells). Tam Dao Khao Kaew, Muaklek, Saraburi: CUMZ 4624 (1 shell). Wat Tharahat, Saraburi: CUMZ 4508 (1 shell), 4530 (1 shell). Sam Larn National Park, Saraburi: CUMZ 4578 (2 specimens in ethanol). Bang Srithong, Bang Kruay, Nonthaburi: CUMZ 4555 (5 shells). Khao Look Chang, Pakchong, Nakhonratchasima: CUMZ 4501 (8 shells), CUMZ 4606 (9 shells), CUMZ 4612 (9 shells), CUMZ 4535 (3 shells). Tub Lann National Park, Nakhonratchasima: CUMZ 4617 (1 shell). Nawang, Nongbualumphu: CUMZ 4529 (1 shell). Tam Suwankuha, Nongbualumphu: CUMZ 4633 (3 shells), 4637 (3 shells). Thung Kra-Mang, Phu Kiew Wildlife Sanctuary, Chaiyaphum: CUMZ 4608 (5 shells). Pang Khone, Sakonnakhon: CUMZ 4619 (4 shells). Phuphan Mountains, Sakonnakhon: CUMZ 4504 (6 shells), CUMZ 4507 (5 shells). Phu Kum Khao, Sahatsakhan, Kalasin: CUMZ 4557 (8 shells). Phu Sri Tharn Wildlife Sanctuary, Kalasin: CUMZ 4621 (1 shell). Huay Lao Waterfall, Phuluang Wildlife Sanctuary, Loei: CUMZ 4634 (1 shell). Tam Pha Bend, Chiang Karn, Loei: CUMZ 4532 (1 shell). Tam Pha Bing, Wangsapung, Loei: CUMZ 4636 (1 shell). Tam Piya, Loei: CUMZ 4639 (3 shells). Tam Mahasombat, Lomsak, Phetchabun: CUMZ 4567 (1 shell). Tam Yai Namnao, Namnao National Park, Phetchabun: CUMZ 4566 (1 shell), CUMZ 4622 (1 shell). Tam Phraya Nakarat, Phuphaman National Park, Khonkaen: CUMZ 4635 (1 shell). Pha Tam National Park, Ubonratchathani: CUMZ 4604 (3 shells), CUMZ 4616 (3 shells). Yod Dome National Park, Buriram: CUMZ 4629 (2 shells). Wang Ta Krai Waterfall, Nakhonnayok: CUMZ 4540 (2 shells), CUMZ 4549 (2 shells), CUMZ 4605 (1 shell), CUMZ 4640 (5 shells), CUMZ 4577 (1 specimen in ethanol). Khao Ang Rue Nai Wildlife Sanctuary, Chachoengsao: CUMZ 4531 (1 shell; Fig. 2 B), CUMZ 4546 (7 shells), CUMZ 4609 (3 shells), CUMZ 4613 (4 shells), CUMZ 4620 (2 shells), CUMZ 4627 (1 shell), CUMZ 4630 (1 shell). Pang Srida National Park, Prachinburi: CUMZ 4631 (4 shells). Ra-Ru, Taphraya, Srakeow: CUMZ 4628 (1 shell). Tam Leum, Klonghad, Srakeow: CUMZ 4625 (1 shell). Khao Cha Ang-Oan, Borthong, Chonburi: CUMZ 4542 (4 shells), CUMZ 4618 (1 shell), CUMZ 4626 (4 shells). Khao Cha Mao Waterfall, Rayong: CUMZ 4543 (1 shell). Tam Suwanphupha, Khao Chamao, Rayong: CUMZ 4545 (1 shell). Wat Ma-deau (Tam Khao Loi), Khao Chamao, Rayong: CUMZ 4544 (4 shells). Plieu National Park, Chanthaburi: CUMZ 4509 (1 shell), CUMZ 4536 (1 shell), CUMZ 4539 (9 shells), CUMZ 4560 (1 specimen in ethanol; Fig. 4), CUMZ 4601 (1 shell), CUMZ 4615 (4 shells). Sibha Shan Waterfall, Chanthaburi: CUMZ 4547 (6 shells). Tha Mai District, Chanthaburi: CUMZ 4603 (1 shell). Koh Kud, Trat: CUMZ 4559 (9 shells), CUMZ 4614 (7 shells). Kaeng Kracharn National Park, Phetchaburi: CUMZ 4527 (1 shell). Tam Nam Pud, Pangnga: CUMZ 4623 (1 shell). Shell. Shell large (height up to 55 mm, width up to 75 mm), yellowish with white narrow peripheral band, and paler color below on lower shell surface. Upper shell surface with thin growth lines interrupted with spiral wrinkles. Last whorl large and rounded; aperture large ovate; lip simple but slightly thickened in adult snails (Fig. 2 C). Genitalia. The external genital organs were described in Godwin-Austen (1900, 1919). Gametolytic sac (gs) bulbous with undifferentiated duct. Internal wall of penis exhibits closely packed papilla knobs that abruptly cease near atrium; penial verge absent. Internal sculpture of vagina with thin and smooth longitudinal vaginal pilasters (vp). Internal surface of dart apparatus smooth; dart papilla (dp) conic, and with a smooth surface (Fig. 4 A, B). Radula. Each row with about 543 teeth (276 - (15 - 20) - 1 - (15 - 20) - 276). Central tooth unicuspid triangular with rounded head (Fig. 10 D). Lateral teeth unicuspid, oblique and triangular. Outer lateral teeth unicuspid, sickle-shaped, with transition to curved and narrow sickle form; latero-marginal transition starts from tooth numbers 15 to 20. Marginal teeth narrowly curved, bicuspid; endocone and ectocone small and pointed (Fig. 10 E). External features. Living snails have a similar soft body morphology and pulmonary cavity to that of H. humphreysiana. The distinct characters are pale brown to brownish body (Fig. 1 B, C). Sole of foot brownish; caudal horn not overhanging; caudal foss a long vertical slit arranged on tail above sole margin. Pedal groove typical aulacopod and well defined (Fig. 4 E). Mantle edge narrow with large dorsal lobes. Right dorsal lobe (rdl) to right of pneumostome, large and thick; left dorsal lobe to left of pneumostome, composed of anterior left dorsal lobe (aldl) and posterior left dorsal lobe (pldl); shell lobe absent (Fig. 4 C, D).	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
E80A2E8DC02D5D248AF307DD2235C9DF.taxon	distribution	Distribution. Ranges from Cambodia to Laos, Thailand and southern Vietnam (Smith 1896; Laidlaw 1932 a; Panha 1988 a, 1994; Schileyko 2011; Inkhavilay et al. 2019). In Thailand, H. distincta is fairly abundant and occurs throughout the country, except for southern Thailand (Panha 1988 b, 1994). The southern limit of the species appears to be near the Isthmus of Kra (10 ° N). We have a single and old shell from Pangnga Province, southern Thailand that needs to be confirmed.	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
34F9EB4CC4FD593E9C6E7E720F72E575.taxon	description	Figures 1 F, 5 C, 7, 10 H, I	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
34F9EB4CC4FD593E9C6E7E720F72E575.taxon	materials_examined	Material examined. Thailand: Tam Chiang Dao, Chiang Mai: CUMZ 4553 (5 specimens in ethanol; Fig. 1 F), CUMZ 4564 (10 specimens in ethanol), CUMZ 4565 (9 specimens in ethanol), CUMZ 4574 (8 specimens in ethanol; Fig. 5 C); Tam Tab-Tao, Chaiprakarn, Chiang Mai: CUMZ 4580 (10 specimens in ethanol). Shell. Shell relatively small (height up to 25 mm, width up to 35 mm), elevated to slightly depressed, upper surface with distinct nodules arranged on growth line, and lower shell surface nearly smooth. Last whorl keeled; aperture large and ovate; lip simple to slightly expanded and dark brown. Umbilicus widely opened and deep (Fig. 5 C). Genitalia. Genital tracts similar to those of H. humphreysiana (Fig. 7 A). Internal wall of penis with sculpture encircling penial verge. Penial sculpture (ps) consists of small to large papillary knobs arranged in oblique lines on penial wall; relatively smaller knobs surrounding penial verge. Penial verge (pv) small, short, conic, and with smooth surface (Fig. 7 B). Gametolytic sac (gs) bulbous with undifferentiated duct. Internal wall of vagina with series of thin longitudinal vaginal pilasters (vp). Dart apparatus (da) relatively short; internal wall of chamber with smooth wall, and papilla of dart apparatus (dp) slightly elongate, conic, and with smooth surface (Fig. 7 B). Radula. Each row possesses about 161 teeth (80 - (18 - 21) - 1 - (19 - 21) - 80). Central tooth triangular, tricuspid; ectocones small; mesocone large (Fig. 10 H). Lateral teeth tricuspid; endocone small; mesocone large with pointed tip; ectocone large, basal, and with pointed tip. Outer lateral teeth arranged slightly obliquely, bicuspid; endocone very small to absent; mesocone large trapezoid; ectocone basal, relatively small, and pointed tip. Latero-marginal transition starts from tooth no. 18 to 21. Marginal teeth with curved teeth, bicuspid; endocone usually larger than ectocone (Fig. 10 I). External features. Living snail exhibits similar soft body morphology, pulmonary cavity and caudal structure (Fig. 7 D) to that of H. humphreysiana. The distinct characters are the brownish to greyish body and mantle edge; right and left shell lobes absent (Fig. 1 F).	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
34F9EB4CC4FD593E9C6E7E720F72E575.taxon	distribution	Distribution. Previously known only from the type locality in northern Vietnam (Maassen 2006) and Xieng Khaung, northeastern Laos (Inkhavilay et al. 2019). Recently, we have located populations from northern Thailand in Chiang Mai Province.	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
18ACEFA5526C547989C773C01B4AEDA7.taxon	description	Figures 1 D, E, 5 A, B, 6, 10 F, G	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
18ACEFA5526C547989C773C01B4AEDA7.taxon	materials_examined	Material examined. Thailand: Bor Klue District, Nan: CUMZ 4649 (5 shells). Ton Tong Waterfall, Doi Phu Ka National Park, Nan: CUMZ 4575 (8 specimens in ethanol; Figs 1 D, E, 5 A, B), CUMZ 4576 (8 shells). Shell. Shell large (height up to 35 mm, width up to 55 mm), depressed conic, dextral, with 6 - 7 whorls; spire slightly elevated with wide and shallow suture. Shell almost black to dark brown with thin yellowish peripheral band. Apex obtuse; embryonic shell large with smooth surface; subsequent whorls with thin growth lines and thin radial wrinkles. Last whorl keeled; aperture large and ovate; lip simple, yellowish to dark yellow, and slightly thickened in adult snail. Columella slightly dilated; parietal callus thin and transparent. Umbilicus wide and deep (Fig. 5 A, B). Genitalia. Both male and female genital characters similar to that of H. humphreysiana. Gametolytic sac (gs) elongate with undifferentiated duct. The unique characters are a coiled epiphallic caecum (ec) and curved flagellum (fl), which are not found in the other species (Fig. 6 A). Internally, penial sculpture (ps) consists of scattered papillary knobs lining penial wall; penial verge absent (Fig. 6 B). Internal wall of vagina and internal structure of dart apparatus are similar to that in H. humphreysiana (Fig. 6 C, D). Radula. Each row contains about 286 teeth (140 - (65 - 75) - 1 - (65 - 75) - 135). Central tooth unicuspid conic-shaped, and dull cusp (Fig. 10 F). Lateral teeth unicuspid, elongate, and slanted with pointed tip. Outer lateral teeth unicuspid, elongate; latero-marginal transition starts from tooth numbers 65 to 75. Marginal teeth slightly curved, bicuspid; endocone and ectocones small and of similar size (Fig. 10 G). External features. Living snails with long, black eye tentacles (Fig. 1 D, E). Skin reticulated, pale brownish to brownish with dark reticulation across the entire head and foot above the lateral margin. Foot sole, caudal foss (Fig. 6 G), caudal horn, and pedal groove similar to those in H. humphreysiana. Mantle edge, dorsal lobe, and shell lobe similar to those in H. humphreysiana, but only long and finger-shaped right shell lobe (rsl) present (Fig. 6 E, F).	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
18ACEFA5526C547989C773C01B4AEDA7.taxon	distribution	Distribution. Previously recorded from the type locality in northern Vietnam, and several localities in northern and central Laos (Smith 1896; Fischer and Dautzenberg 1904; Inkhavilay et al. 2019). Recently, we recorded this species from two localities in Nan Province, northern Thailand.	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
BCA141BA093257C29651C7B503DF8A09.taxon	description	Figures 1 A, 2 A, B, 3, 10 A-C	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
BCA141BA093257C29651C7B503DF8A09.taxon	materials_examined	Material examined. Singapore: Bukit Timah: RMBR 1990.1711 (1 specimen in ethanol), 1990.15781 - 2 (2 specimens in ethanol); CUMZ 4573 (1 shell; Figs 2 A, 3). Botanic Garden: RMBR 1975.2.10.89 (1 shell), RMBR 1990.1710 (1 specimen in ethanol); CUMZ 4571 / 1 (1 shell), CUMZ 4572 (4 specimens in ethanol). Nee Soon: RMBR 1990.15945 (1 shell), RMBR 1990.16996 (1 specimen in ethanol), RMBR 1990.15103 - 4 (2 specimens in ethanol), RMBR 1992.3159 (1 specimen in ethanol), RMBR 1992.3160 - 1 (2 shells), RMBR 1992.3162 (1 specimen in ethanol), RMBR 1994.4116 (1 specimen in ethanol). Singapore: RMBR 1989.509 - 513 (5 shells), RMBR 1990.15105 (1 specimen in ethanol). Thailand: Sirindhorn Waterfall, Halabala National Park, Narathivat Province: CUMZ 4647 (2 shells), CUMZ 4648 (1 shell; Fig. 2 B). Shell. Shell large (height up to 40 mm, width up to 55 mm), dextral and conic to depressed conic (Fig. 2 A, B). Whorls 6 to 8, slightly convex; suture wide and shallow. Shell yellowish to brownish, usually with narrow dark brown band on periphery. Upper shell surface darker than lower surface. Apex obtuse; embryonic shell large and smooth; following whorls with thin growth lines. Last whorl rounded to slightly angulate; aperture ovate; lip simple but slightly thickened in adult snail. Columella slightly dilated; parietal callus thin and translucent. Umbilicus open and deep. Genitalia. Atrium (at) very short (Fig. 3 A). Penis (p) long, slender, cylindrical, and encircled by thin penial sheath (psh) extending about one-third of penis length. Epiphallic caecum (ec) short, straight; penial retractor muscle (pr) thin and attached to the tip. Epiphallus (e) short and about one-third of penis length. Flagellum (fl) short, stout, and with thin muscle bands connected to penial sheath. Vas deferens (vd) small tube. Internal wall of penis with sculpture encircling penial verge (Fig. 3 B). Penial sculpture (ps) consists of scattering of small papillary knobs arranged randomly on penial wall. Penial verge (pv) long conic with smooth surface. Vagina (v) long and cylindrical (Fig. 3 A, B); internal wall with thin and smooth longitudinal vaginal pilasters (vp). Dart apparatus (da) long muscular cylinder, externally and internally smooth; dart papilla (dp) short, conic, and smooth. Gametolytic sac (gs) elongate or bulbous without distinct duct. Free oviduct (fo) long and encircled with thickened blackish muscular tissue (orange in fresh specimens). Oviduct (ov) long and with lobules; prostate gland bound to oviduct. Albumen gland (ag) small. Hermaphroditic duct (hd) small, convoluted, and connected to lobules of hermaphroditic gland (hg). Radula. Each row containing about 253 teeth (127 - (18 - 32) - 1 - (29 - 32) - 125). Central tooth unicuspid and triangular (Fig. 10 A). Lateral teeth unicuspid, slanted, and with curved cusp. Outer lateral teeth with slightly curved cusps; latero-marginal transition from tooth numbers 28 to 32 (Fig. 10 B). Marginal teeth bicuspid and curved; endocone and ectocone usually similar in shape and size (Fig. 10 C). External features. Mantle edge with large dorsal lobes. Right dorsal lobe (rdl) to right of anus (an; on the left in figure), large, and thick. Left dorsal lobe to left of anus (on the right in figure), composed of thin crescentic anterior left dorsal lobe (aldl), and thin elongated posterior left dorsal lobe (pldl). Right shell lobe (rsl) and left shell lobe (lsl) have short finger-shaped extensions located on mantle edge near tip of urinary groove and around junction of anterior and posterior left dorsal lobes, respectively, (Fig. 3 C, D). Pulmonary cavity typically sigmurethran, heart (h; auricle and ventricle) located left of kidney (k; on the right in figure). Pulmonary cavity approximately four times longer than wide. Pulmonary vein (puv) and venation on lung cavity well developed and distinct. Kidney (k) elongate, slender, and approximately one-third length of pulmonary cavity. Ureter (ur) sigmoid, closed tube arising from tip of kidney, extending along right side of kidney, and curved adjacent to rectum (r). Anus (an) adjacent to mantle edge (Fig. 3 C). Living snails possess long greyish-brown tentacles (Fig. 1 A). Skin reticulated brownish with blackish reticulations around head. Foot sole relatively elongate, broad and unipartite. Sole of foot plain brownish; side of body brownish; upper part of tail dark greyish. Tail long, curved mid-dorsally, tall dome-shaped in cross section. Caudal horn not overhanging; caudal foss a long vertical slit arranged on tail above sole margin. Pedal groove typical aulacopod and well defined (Fig. 3 E).	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
BCA141BA093257C29651C7B503DF8A09.taxon	distribution	Distribution. The systematic studies of some Hemiplecta species have revealed incongruence between the traditional shell-based and molecular classifications (Sutcharit et al. 2021). Therefore, apart from Singapore (type locality) the historical record of H. humphreysiana from Sumatra, Borneo, and several localities in Peninsular Malaysia (Martens 1867; Tryon 1886; Godwin-Austen 1898; Collinge 1902; Laidlaw 1932 a, 1933, 1957; Benthem Jutting 1950, 1959) needs to be confirmed by more convincing morphological and molecular evidences. In Thailand, this is the first and only record of this species from Narathivat, the southern-most province of Thailand.	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
7E36A49598695D4684C491445104B804.taxon	description	Figures 8, 9, 10 J	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
7E36A49598695D4684C491445104B804.taxon	etymology	Etymology. The species name is derived from the Latin word " nemoris " meaning " full of woods or shady, " which refers to the type locality of this new species in the dense deciduous forest.	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
7E36A49598695D4684C491445104B804.taxon	description	Description. Shell medium sized (height up to 15 mm, width up to 45 mm), depressed conic, thin and dextral. Whorls 5 to 6, increasing regularly, slightly convex, with very wide and shallow suture. Spire convex; apex acute; embryonic shell smooth; following whorls with thin growth lines and radial wrinkles or undulating surfaces. Periostracum thin and transparent. Shell pale brownish to yellowish. Last whorl angular with strong peripheral keel which is much reduced near aperture. Aperture not descending, widely ovate and moderately oblique; lip simple to slightly thickened in adult specimen. Columella slightly dilated; parietal callus slightly thick and translucent. Umbilicus narrowly opened, deep, and partly covered by reflected columellar lip (Fig. 8). Genitalia. Atrium (at) long. Penis (p) long slender, cylindrical, and encircled by thick penial sheath (psh) extending to about half of penis length. Epiphallic caecum (ec) short, straight; penial retractor muscle (pr) thin and attached to the tip. Epiphallus (e) short, about half of penis length. Flagellum (fl) short, stout, and with thin muscle bands connected to penial sheath. Vas deferens (vd) small tube (Fig. 9 A). Internal wall of penis with sculpture over entire chamber with uniform scale-like or triangular lingulate pilasters varying in size from small to large and pilasters encircling penial verge smaller than in the middle of chamber. Penial verge (pv) small, conic, and with smooth surface (Fig. 9 B). Vagina (v) long, cylindrical, about same length as penis; internal wall with thin and smooth longitudinal vaginal pilasters (vp). Dart apparatus (da) short and enlarged muscular cylinder; externally covered with thin longitudinal muscular bands around half of dart apparatus length. Internally with irregular wall, dart papilla (dp) conic and smooth. Gametolytic sac (gs) bulbous without distinct duct. Free oviduct (fo) long and encircled with thin blackish muscular tissue. Oviduct (ov) long and with lobules; prostate gland bound to oviduct. Albumen gland, hermaphroditic duct, and hermaphroditic gland missing from the examined specimen (Fig. 9 A, B). Radula. Teeth arranged in wide angled U-shape. Each row containing more than 135 teeth (+ 58 - (16 - 19) - 1 - (16 - 19) - 75). Central tooth symmetrical tricuspid and triangular; mesocone conic shaped and with pointed cusp; ectocones short with dull cusps located at middle of tooth height. Lateral teeth asymmetrical tricuspid; endocone nearly absent; mesocone triangular with pointed cusp; ectocone with pointed cusps and located below endocone. Marginal teeth start around tooth numbers 16 to 19, elongate and obliquely bicuspid; endocone larger than ectocone and with pointed cusp; ectocone very small. Outer marginal teeth bicuspid and shorter than inner teeth (Fig. 10 J).	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
7E36A49598695D4684C491445104B804.taxon	distribution	Distribution. This new species is currently known only from the type locality in northern Thailand.	en	Sutcharit, Chirasak, Panha, Somsak (2021): Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. ZooKeys 1047: 101-154, DOI: http://dx.doi.org/10.3897/zookeys.1047.65735, URL: http://dx.doi.org/10.3897/zookeys.1047.65735
