taxonID	type	description	language	source
70CBCA2E2395FA0FF8D032980EC7FDBD.taxon	description	Description. Shell. Shell flattened to globose-heliciform, white, semi-transparent to translucent. Whorls 4 - 7; spire flattened to conical. Shell surface glossy, nearly smooth or with transverse ridges; varices often present. Embryonic shell, about 21 / 2 whorls, with a smooth surface; following whorls regularly coiled or at most only slightly axially deflected. Last whorl rounded to angular, often with peripheral keel, whorls regularly to rapidly expanded. Umbilicus open to very widely open. Aperture semi-ovate to triangular. Peristome discontinuous, thin to thick, expanded and reflected. Longitudinal furrows outside aperture may be present. Apertural dentition always with one parietal lamella; other lamellae may be present including: upper palatal, palatal, basal, columellar and supracolumellar lamellae. Radula. Teeth unicuspid, elongate lanceolate, and arranged in anteriorly V-shaped rows. Central tooth tiny with pointed cusp. Lateral and marginal teeth undifferentiated. Latero-marginal teeth gradually reduce in size, with outermost teeth smaller and shorter than inner teeth. Genital organs. Penis short to long, sometimes with a penial appendix. Penial sheath short (less than half of penis length) to long (equivalent to penis length). Internal wall of introverted penis with transparent to brown penial hooks. Vas deferens passes through a short section of penial sheath before connecting distally to penis. Vagina and free oviduct short to long. Seminal vesicle present, convoluted, short to long. External features. Live specimens exhibit a semi-transparent dark yellow to pale yellow body, covered with reticulated skin, and sometimes with brownish spots. Upper tentacles long with black eye-spot on the tip, yellow to orange; lower tentacles short. Brownish digestive gland and black kidney may be visible through transparent shell. Foot narrow, undivided and with short tail.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
209334AE539F7B5FD07F0F9C04D1EE8E.taxon	description	Description. Shell. Shell flattened, white and translucent; whorls 6 - 61 / 2; spire flattened with distinct suture. Shell surface glossy, smooth with growth lines and varices present. Embryonic shell large, about 21 / 2 whorls, with a smooth surface; following whorls regularly coiled. Last whorl angular, regularly expanded; umbilicus very wide, shallow and showing all preceding whorls. Aperture semi-ovate; peristome discontinuous, thickened, expanded and reflected; apertural dentition with only one parietal lamella (Fig. 4 A-C). Radula. Each row consists of 61 - 67 teeth with formula (30 - 33) - 1 - (30 - 33). Central tooth very small and triangular with pointed cusp. Lateral and marginal teeth undifferentiated, unicuspid and lanceolate. Latero-marginal teeth gradually reduce in size, with outermost teeth smaller and shorter than inner teeth (Fig. 22 A). Genital organs. Atrium (at) short; penis (p) long and slender. Penial sheath (ps) thin, extending about half to third-fourths of penis length; penial sheath retractor muscle (psr) very thin, originating at atrium and inserting at distal end of penial sheath (Fig. 11 A). Vas deferens (vd) passes through a very short part of penial sheath before entering into penis distally (Fig. 11 B). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction. Vagina (v) long, cylindrical, about two thirds of penis length. Gametolytic duct (gd) a long tube extending as far as albumin gland; gametolytic sac (gs) ovate. Free oviduct (fo) short; oviduct (ov) enlarged and folded. Prostate gland inconspicuous and bound to oviduct. Talon (ta) small. Hermaphroditic duct (hd) bearing long seminal vesicle (sv) about one and half times longer than the length from talon to branching point of seminal vesicle (Fig. 11 A). Pallial system. Excretory system typically sigmurethran and without mantle gland. Heart (h, auricles and ventricle) located left of kidney (on right in Fig. 11 C). Pulmonary cavity approximately three times longer than broad. Pulmonary vein (puv) and venation on lung roof distinct and well developed. Kidney (k) very short, located at posterior of pulmonary cavity. Ureter (ur) sigmoid, closed tube arising from apex of kidney, extending along right side of kidney, recurving adjacent to rectum (rt). Anus (a) adjacent to pneumostome (pn) on mantle collar.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
E278A7872305646B399FD77828B54265.taxon	description	Description. Shell. Shell flattened, white and semi-transparent; whorls 51 / 2, spire flattened with distinct suture. Shell surface glossy with thin transverse ridges near suture and varices present. Embryonic shell about 21 / 2 whorls; following whorls regularly coiled. Last whorl angular with strong peripheral keel, regularly expanded; umbilicus very wide and showing all preceding whorls. Aperture triangular with sinulus; peristome continuous, thickened, expanded and reflected. Apertural dentition with a Y-shaped parietal lamella adjoining at sinulus (Fig. 4 G). Radula. Each row consists of 39 - 41 teeth with formula (19 - 20) - 1 - (19 - 20). Central tooth very small and triangular with pointed cusp. Lateral and marginal teeth undifferentiated, unicuspid and lanceolate. Latero-marginal teeth gradually reduce in size, with outermost teeth smaller and shorter than inner teeth (Fig. 22 B). Genital organs. Atrium (at) long. Proximal penis (p) long, slender; distal penis globularly enlarged. Penial sheath (ps) thin, extending about two-thirds of penis length; penial sheath retractor muscle very thin (psr), originating at genital orifice wall and inserting distally on penial sheath (Fig. 11 D). Vas deferens (vd) passes through about one-fifth of penial sheath length before entering into penis distally (Fig. 11 E). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction. Internal wall of atrium generally smooth (Fig. 17 A); penial wall with scattered, short and transparent penial hooks, about 5 hooks / 200 µm 2 (Fig. 17 B); hooks located on round-ovate penial papilla. Penial hooks of small size (<0.04 mm in length), slightly expanded at base, tip obtuse and directed towards genital orifice (Fig. 17 C, D). Vagina (v) short and stout, about half of penis length. Gametolytic duct (gd) a long tube extending as far as albumin gland; gametolytic sac (gs) ovate. Free oviduct (fo) long and thick; oviduct (ov) enlarged and folded; prostate gland inconspicuous and bound to oviduct. Talon (ta) small, very short and club shaped. Hermaphroditic duct (hd) bearing long seminal vesicle (sv) about one and half times longer than the length from talon to branching point of seminal vesicle (Fig. 11 D). Vaginal wall generally with smooth surface of longitudinal vaginal folds (Fig. 17 E).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
DAD49FFBCBDB27E4A683DF96AF8D2FA3.taxon	diagnosis	Diagnosis. This new species can be distinguished from Discartemon discus and Discartemon sykesi by having transverse ridges that diminish below the periphery, and having an apertural dentition with five lamellae. In comparison, Discartemon sykesi has a smaller shell and Discartemon discus has a higher spire. The genitalia of Discartemon discus have a short penis, penial sheath and free oviduct, and long vagina while Discartemon discadentus sp. n. has a very long penis, penial sheath and free oviduct, and short vagina. Discartemon discadentus sp. n. differs from Discartemon nummus and Discartemon khaosokensis in having a larger shell with higher spire, in lacking a peripheral keel, and in usually having five apertural lamellae. The last whorl of Discartemon khaosokensis is rapidly expanded, while Discartemon nummus has a regularly expanded last whorl and Y-shaped parietal lamella. The genitalia of Discartemon discadentus sp. n. differ from those of Discartemon nummus in the long and slender penis, penial wall with reticulated folds, and long penial hooks located on conical penial papillae.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
DAD49FFBCBDB27E4A683DF96AF8D2FA3.taxon	description	Description. Shell. Shell flattened, white and translucent; whorls 6; spire only slightly elevated; suture distinct. Shell surface glossy with transverse ridges that diminish below periphery; varices present. Embryonic shell large, about 21 / 2 whorls, with smooth surface; following whorls regularly coiled. Last whorl angular, intermediately expanded; umbilicus very wide and showing all preceding whorls. Aperture semi-ovate; peristome discontinuous, thickened and expanded. Apertural dentition usually with one strong parietal, one palatal, one small basal and one strong columellar lamella. A small supracolumellar lamella is sometimes present (Fig. 4 I). Genital organs. Atrium (at) short; penis (p) very long and slender. Penial sheath (ps) thin, extending about five-sixths of penis length; penial sheath retractor muscle very thin (psr), originating at genital orifice wall and inserting distally on penial sheath (Fig. 12 A). Vas deferens (vd) passes through a very short part of penial sheath before entering into penis distally (Fig. 12 B). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction. Internal wall of atrium generally corrugated (Fig. 17 F). Penial wall with scattered and transparent penial hooks, about 6 hooks / 200 µm 2 (Fig. 17 G); hooks located on conical penial papillae (pp) separated by low reticulated folds. Penial hooks small (<0.03 mm in length), expanded at base, tips pointed and curved towards genital orifice (Fig. 17 H). Vagina (v) short, about one seventh of penis length. Gametolytic duct (gd) a long tube extending as far as albumin gland; gametolytic sac (gs) ovate. Proximal free oviduct (fo) convoluted and distally long and thick; oviduct (ov) enlarged and folded. Prostate gland inconspicuous and bound to oviduct. Talon (ta) small, short and club shaped. Hermaphroditic duct (hd) bearing long seminal vesicle (sv) about four times longer than the length from talon to branching point of seminal vesicle (Fig. 12 A). Vaginal wall generally with smooth surface of reticulated vaginal folds (Fig. 17 I).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
DAD49FFBCBDB27E4A683DF96AF8D2FA3.taxon	etymology	Etymology. The specific epithet " discadentus " is derived from the Latin " discus " meaning " disc " and " dentatus " meaning " teeth ".	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
DAD49FFBCBDB27E4A683DF96AF8D2FA3.taxon	distribution	Distribution. This species seems to be restricted to limestone areas in Suratthani Province, Thailand. Tam Khuha, Kanchanadit District, is an isolated limestone hill about 40 km southeast of the type locality and Wat Tam Wararam, Phanom District, is in the limestone mountains near Ratchaprapa Dam, about 70 km southwest of the type locality.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
7F2D0B1A1FEE4ED3D60FFEFE80A6D0AC.taxon	diagnosis	Diagnosis. The characters distinguishing Discartemon discamaximus sp. n. from Discartemon sykesi and Discartemon khaosokensis are the larger shell with flattened to concave spire, the transverse ridges present near the suture, and the lack of a sinulus. Discartemon discamaximus sp. n. has similar shell morphology to Discartemon discus and Discartemon discadentus sp. n., but is distinguished by having the transverse ridges present only near the suture and the last whorl rapidly expanded. Discartemon discadentus sp. n. also has five apertural lamellae.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
7F2D0B1A1FEE4ED3D60FFEFE80A6D0AC.taxon	description	Description. Shell. Shell flattened, white and translucent; whorls 7, spire flattened to concave, with distinct suture. Shell surface glossy with transverse ridges near suture and varices present. Embryonic shell large, about 21 / 2 whorls, with smooth surface; following whorls regularly coiled. Last whorl angular, rapidly expanded; umbilicus very wide and showing all preceding whorls. Aperture semi-ovate; peristome discontinuous, expanded and reflected; apertural dentition with one parietal lamella (Fig. 5 A).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
7F2D0B1A1FEE4ED3D60FFEFE80A6D0AC.taxon	etymology	Etymology. The specific epithet " discamaximus " is derived from the Latin " discus " meaning " disc " and " maximus " meaning " large or broad ".	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
7F2D0B1A1FEE4ED3D60FFEFE80A6D0AC.taxon	distribution	Distribution. This new species is known from limestone karst near Phanganga Bay reaching about 100 - 400 meters amsl, surrounded by the Phuket mountain range.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
69BF7C358F26DAFC8BAB52D4642473DE.taxon	diagnosis	Diagnosis. Discartemon circulus sp. n. differs from Discartemon discus and Discartemon sykesi in its narrower umbilicus, sub-quadrangular aperture, and apertural dentition with five lamellae. In addition, Discartemon discus has a larger shell, while Discartemon sykesi has an intermediately expanded last whorl and a sinulus. Compared with Discartemon khaosokensis, Discartemon circulus sp. n. has a smaller shell, a flattened spire with weak transverse ridges, an angular last whorl, a sinulus, and five apertural lamellae. Discartemon circulus sp. n. differs from Discartemon discadentus sp. n. and Discartemon discamaximus sp. n. in having a smaller shell with weak transverse ridges and five apertural lamellae. Compared with Discartemon expandus sp. n., Discartemon circulus sp. n. has weaker transverse ridges, a regularly expanded peristome, and five apertural lamellae.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
69BF7C358F26DAFC8BAB52D4642473DE.taxon	description	Description. Shell. Shell flattened, white and translucent; whorls 51 / 2 - 6, spire flattened, with a distinct suture. Shell surface glossy with weak transverse ridges and varices present. Embryonic shell large, about 21 / 2 whorls, with a smooth surface; following whorls regularly coiled. Last whorl angular, regularly expanded; umbilicus very wide, deep and showing all preceding whorls. Aperture sub-quadrangular; peristome discontinuous, thin and expanded. Apertural dentition with one parietal, one palatal, one small basal, one small columellar and one small supracolumellar lamella (Fig. 5 C).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
69BF7C358F26DAFC8BAB52D4642473DE.taxon	etymology	Etymology. The specific epithet is from the Latin " circulus " meaning " circle ". It refers to the appearance of this new species when seen from the apex.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
69BF7C358F26DAFC8BAB52D4642473DE.taxon	distribution	Distribution. This species is known only from the type locality, an isolated limestone hill which reaches about 200 meters amsl, about 20 km southwest of Tai Rom Yen National Park.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
1E5094264CAB07F4216817DC834D077E.taxon	diagnosis	Diagnosis. This species closely resembles Discartemon sykesi, but is distinct in having a concave spire and strong peripheral keel on the last whorl. Compared with Discartemon khaosokensis, Discartemon deprima sp. n. has a smaller shell with weaker transverse ridges, and the last whorl intermediately expanded. Discartemon deprima sp. n. differs from Discartemon nummus by having a larger shell, a concave spire, and one straight parietal lamella. It differs from Discartemon circulus sp. n. and Discartemon expandus sp. n. in having a concave spire, the last whorl intermediately expanded with a strong peripheral keel, and in having only one parietal lamella and a sinulus. In addition, Discartemon expandus sp. n. has transverse ridges that diminish below the periphery, and has a thin and widely expanded peristome.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
1E5094264CAB07F4216817DC834D077E.taxon	description	Description. Shell. Shell flattened, white and semi-transparent; whorls 5, spire concave with a distinct suture. Shell surface glossy with weak transverse ridges that diminish below periphery and appear again near peristome; varices present. Embryonic shell large, about 21 / 2 whorls, with a smooth surface; following whorls regularly coiled. Last whorl angular with strong peripheral keel, intermediately expanded. Umbilicus very wide and showing all preceding whorls. Aperture semi-ovate with sinulus; peristome discontinuous, thin, expanded and reflected. Apertural dentition with only one parietal lamella (Fig. 5 E).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
1E5094264CAB07F4216817DC834D077E.taxon	etymology	Etymology. The specific epithet " deprima " is derived from the Latin " deprimo " meaning " depress ". It refers to the depressed spire of this new species.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
1E5094264CAB07F4216817DC834D077E.taxon	distribution	Distribution. This species is known from the east coast of Chumphon, on an isolated limestone hill reaching about 200 meters amsl, and from a more southerly locality in Patthalung, a limestone hill complex reaching about 200 - 400 meters amsl.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
7EB9CD6933A22C13872486FDF87BDDA5.taxon	diagnosis	Diagnosis. Discartemon expandus sp. n. differs from Discartemon discus and Discartemon sykesi in its smaller shell with transverse ridges, intermediately expanded last whorl, and widely expanded peristome. In addition, a sinulus is absent in Discartemon discus. Discartemon expandus sp. n. can be distinguished from Discartemon khaosokensis by having a flattened spire, an angular and intermediately expanded last whorl, and a widely expanded peristome. Compared with Discartemon discadentus sp. n. and Discartemon discamaximus sp. n., Discartemon expandus sp. n. has a smaller shell with strong transverse ridges, a sinulus and a widely expanded peristome. Moreover, Discartemon discadentus sp. n. has five apertural lamellae, and Discartemon discamaximus sp. n. has a rapidly expanded last whorl.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
7EB9CD6933A22C13872486FDF87BDDA5.taxon	description	Description. Shell. Shell flattened, white and semi-transparent; whorls 51 / 2 - 6, spire flattened with a distinct suture. Shell surface glossy with transverse ridges that diminish below periphery; varices present. Embryonic shell large, about 2 - 21 / 2 whorls, with a smooth surface; following whorls regularly coiled. Last whorl angular, intermediately expanded; umbilicus very wide, deep and showing all preceding whorls. Aperture semi-ovate with narrow sinulus; peristome discontinuous, thin and widely expanded. Apertural dentition of only one parietal lamella (Fig. 5 G).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
7EB9CD6933A22C13872486FDF87BDDA5.taxon	etymology	Etymology. The specific epithet " expandus " is derived from the Latin " expandi " meaning " expand ". It refers to the expanded peristome of this species.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
7EB9CD6933A22C13872486FDF87BDDA5.taxon	distribution	Distribution. The species is known only from the type locality and extensive searching revealed no living examples.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
2FED4875264A01A88788C36AF7405B9D.taxon	description	Description. Shell. Shell depressed-heliciform, white and semi-transparent; whorls 5 - 51 / 2, spire only slightly convex with distinct suture. Shell surface glossy with thin transverse ridges that diminish below periphery; varices present. Whorls regularly coiled; last whorl rounded, regularly expanded; umbilicus very wide, deep and showing all preceding whorls. Aperture triangular; peristome discontinuous, thickened, expanded and reflected. Apertural dentition with one sinuous parietal, one palatal, one columellar and one supracolumellar lamella (Fig. 6 C). Radula. Each row consists of 43 teeth with formula (21) - 1 - (21). Central tooth very small and triangular with a pointed cusp. Lateral and marginal teeth undifferentiated, unicuspid and lanceolate. Latero-marginal teeth gradually reduce in size, with outermost teeth much smaller and shorter than inner teeth (Fig. 22 C). Genital organs. Atrium (at) long and thick. Proximal penis (p) with short and stout penial appendix (pa) about two-thirds of penis length; distal penis slender (Fig. 12 C). Penial sheath retractor muscle (psr) very thin, originating at genital orifice wall and inserting distally on penial sheath (Fig. 12 C). Vas deferens (vd) passes through about a quarter of penial sheath length before entering into penis distally (Fig. 12 D). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction. Internal wall of atrium generally smooth with numerous atrial pores (Fig. 18 A). Penial wall with dense and brownish penial hooks, about 4 hooks / 200 µm 2 (Fig. 18 B). Hooks located on laterally-flattened penial papillae (pp), which are separated by thin reticulated folds. Penial hooks very small (<0.01 mm in length), expanded at base, pointed at tip and curved towards genital orifice (Fig. 18 C, D). Vagina (v) short. Gametolytic duct (gd) enlarged and stout at base, and suddenly tapering to small and long tube extending as far as albumin gland; gametolytic sac (gs) ovate. Free oviduct (fo) proximally large with equivalent diameter to vagina, tapering to smaller tube distally. Oviduct (ov) enlarged and folded; prostate gland inconspicuous and bound to oviduct. Talon (ta) small, short and club shaped. Hermaphroditic duct (hd) bearing long and thick seminal vesicle (sv) about one and half times longer than the length from talon to branching point of seminal vesicle (Fig. 12 C). Vaginal wall with reticulated vaginal folds (Fig. 18 E).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
2FED4875264A01A88788C36AF7405B9D.taxon	distribution	Distribution. This species is known from several limestone hills in Perlis, Malaysia.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
2F77D7D985EA4155FBFE89D1A894EE1F.taxon	description	Description. Shell. Shell depressed-heliciform, white and semi-transparent; whorls 5 - 51 / 2, spire only slightly convex with distinct suture. Shell surface glossy with transverse ridges and varices present. Whorls regularly coiled; last whorl angular, regularly expanded, ultimate part expanded; umbilicus very wide, deep and showing all preceding whorls. Aperture triangular, sometimes semi-ovate; peristome discontinuous, expanded and little reflected. Apertural dentition of one parietal and one small palatal lamella (Fig. 6 E). Genital organs. Atrium (at) short. Penis (p) long, swollen at middle and with a long and slender penial appendix (pa) about half of penis length. Penial sheath (ps) thin, extending about one-third of penis length; penial sheath retractor muscle (psr) very thin, originating at genital orifice wall and inserting distally on penial sheath (Fig. 13 A). Vas deferens (vd) passes through entire length of penial sheath before entering into penis distally (Fig. 13 B). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction. Internal wall of atrium with smooth surface (Fig. 18 F). Penial wall with translucent penial hooks densely scattered, about 18 hooks / 200 µm 2 (Fig. 18 G). Hooks located on ovate penial papillae (pp). Penial hooks small (<0.04 mm in length), tips obtuse and curved towards genital orifice (Fig. 18 H-K). Vagina (v) short, about one-third of penis length. Proximal gametolytic duct (gd) enlarged, stout; distally a long tube extending as far as albumin gland; gametolytic sac (gs) ovate. Proximal free oviduct (fo) enlarged then tapering to smaller tube distally. Oviduct (ov) enlarged and folded; prostate gland inconspicuous and bound to oviduct. Talon (ta) small and club shaped. Hermaphroditic duct (hd) bearing long and thick seminal vesicle (sv) about one and half times longer than the length from talon to branching point of seminal vesicle (Fig. 13 A). Vaginal wall generally smooth (Fig. 18 L).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
2F77D7D985EA4155FBFE89D1A894EE1F.taxon	distribution	Distribution. This species is known from the limestone mountains around the type locality in Perak, Malaysia.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
6B145829CB962E75C5F0A2182D44C3D5.taxon	diagnosis	Diagnosis. This new species can be distinguished from Discartemon plussensis, Discartemon leptoglyphus and Discartemon platymorphus in having a nearly smooth shell surface, a shouldered last whorl, and five to seven apertural lamellae. Discartemon afthonodontia sp. n. differs from Discartemon hypocrites by having a nearly smooth shell surface and an aperture with two parietal, two palatal, one basal and two columella lamellae. The genitalia of Discartemon afthonodontia sp. n. differ from those of Discartemon hypocrites in lacking a penial appendix, in having the free oviduct long and slender, and in having the vas deferens passing straight through the penial sheath. They also differ from Discartemon afthonodontia sp. n. in having conical penial papillae, long and slender penial hooks, and in having the penial wall with thick reticulated folds, and the vaginal wall with a smooth surface. Compared with Discartemon epipedis sp. n., Discartemon afthonodontia sp. n. has more apertural lamellae, lacks a penial appendix and has the vas deferens passing straight through the penial sheath. They also differ from Discartemon afthonodontia sp. n. in having a penial wall with thick reticulated folds, and in having a very long and slender free oviduct.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
6B145829CB962E75C5F0A2182D44C3D5.taxon	description	Description. Shell. Shell depressed-heliciform, white and translucent; whorls 6, spire conical to convex with distinct suture. Shell surface glossy, smooth with transverse ridges near the peristome and varices present only on early whorls. Embryonic shell large, about 21 / 2 whorls, with a smooth surface; following whorls regularly coiled. Last whorl shouldered, sometimes angular with strong peripheral keel, regularly expanded, and two shallow and short longitudinal furrows present. Umbilicus widely open and deep. Aperture sub-quadrangular; peristome discontinuous, thickened, expanded and reflected. Aperture dentition with one strong parietal, one palatal, one basal, one large columellar and one small supracolumellar lamella; sometimes upper parietal and upper palatal lamellae present (Fig. 7 A). Radula. Each row consists of 35 - 39 teeth with formula (17 - 19) - 1 - (17 - 19). Central tooth small with pointed cusp. Lateral and marginal teeth undifferentiated, unic uspid and lanceolate. Latero-marginal teeth gradually reduce in size, with outermost teeth much smaller and shorter than inner teeth (Fig. 22 D). Genital organs. Atrium (at) short. Proximal penis (p) short with very short, stout penial appendix (pa). Distal penis slender (Fig. 13 D, E). Penial sheath (ps) thin, extending about one and half times penis length; penial sheath retractor muscle (psr) very thin, originating at genital orifice wall and inserting distally on penial sheath (Fig. 13 C). Vas deferens (vd) passes straight through penial sheath before entering into penis distally (Fig. 13 D). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction. Internal wall of atrium with numerous atrial pores (Fig. 19 A). Penial wall with scattered brown penial hooks, about 5 hooks / 200 µm 2 (Fig. 19 B). Hooks located on conical penial papillae (pp) which are separated by thickened reticulated folds. Penial hooks small (<0.01 mm in length), expanded at base, tips pointed and curved towards genital orifice (Fig. 19 C, D). Vagina (v) short, about half of penis length. Gametolytic duct (gd) a long tube extending as far as albumin gland; gametolytic sac (gs) ovate. Free oviduct (fo) a very long and slender tube; oviduct (ov) enlarged and folded; prostate gland inconspicuous and bound to oviduct. Talon (ta) small and slender. Hermaphroditic duct (hd) bearing long seminal vesicle (sv) about one and half times longer than the length from talon to branching point of seminal vesicle (Fig. 13 C). Vaginal wall surface generally smooth (Fig. 19 E).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
6B145829CB962E75C5F0A2182D44C3D5.taxon	etymology	Etymology. The specific epithet " afthonodontia " is derived from the Greek " afthonos " meaning " plenty " and " dontia " meaning " teeth ".	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
6B145829CB962E75C5F0A2182D44C3D5.taxon	distribution	Distribution. This species is known from several limestone karsts in Chumphon and Prachuap Khirikhan Provinces, southern Thailand. This is a narrow range confined to the Isthmus of Kra area, from 9 ° to 11 ° N and 99 ° to 100 ° E.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
FF8E29E4DB0C7879BABABB1733787FE2.taxon	diagnosis	Diagnosis. Discartemon epipedis sp. n. differs from Discartemon plussensis and Discartemon leptoglyphus in having a higher spire, a nearly smooth shell surface, a semi-ovate aperture, and four apertural lamellae. Compared with Discartemon flavacandida sp. n., Discartemon epipedis sp. n. has a smaller shell, lacks longitudinal furrows, has the last whorl rounded and regularly coiled, and has four apertural lamellae. The genitalia of Discartemon epipedis sp. n. differ from those of Discartemon flavacandida sp. n. in having a very short and swollen penial appendix, a long and enlarged vagina, short free oviduct, low conical penial hooks, penial papillae present, and in lacking vaginal pores. Discartemon epipedis sp. n. differs from Discartemon roebeleni in having a depressed-heliciform shell, a nearly smooth shell surface, and a semi-ovate aperture. The genitalia have a very short and swollen penial appendix, long and enlarged vagina, long and slender free oviduct, dark brown penial hooks located on conical penial papillae, and a vaginal wall with smooth surface.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
FF8E29E4DB0C7879BABABB1733787FE2.taxon	description	Description. Shell. Shell depressed-heliciform, white and translucent; whorls 6, spire only slightly convex with distinct suture. Shell surface glossy, nearly smooth with few transverse ridges near peristome; varices present. Embryonic shell large, about 21 / 2 whorls. with a smooth surface; following whorls regularly coiled. Last whorl shouldered or rarely rounded, regularly expanded; umbilicus widely open and deep. Aperture semi-ovate; peristome discontinuous, thickened, expanded and reflected. Apertural dentition with a strong parietal lamella and one palatal, one basal and one columellar lamella (Fig. 7 C). Genital organs. Atrium (at) very short. Proximal penis (p) very short penial appendix (pa) swollen in middle, and distal penis slender. Penial sheath (ps) thin, extending about two-thirds of penis length; penial sheath retractor muscle (psr) very thin, originating at genital orifice wall and inserting distally on penial sheath (Fig. 14 A). Vas deferens (vd) passes through about one-seventh of penial sheath length before entering into penis distally (Fig. 14 B). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction. Internal wall of atrium generally smooth with sparse atrial pores (Fig. 19 F); penial wall with scattered dark brown penial hooks, about 2 hooks / 200 µm 2 (Fig. 19 G). Hooks located on conical penial papillae (pp) separated by thin reticulated folds. Penial hooks small (<0.03 mm in length), low conical, expanded at base, tips pointed (Fig. 17 H). Vagina (v) long, enlarged, about half of penis length. Gametolytic duct (gd) expanded at base and tapering to long and tube extending as far as albumin gland; gametolytic sac (gs) ovate. Free oviduct (fo) a long and narrow tube; oviduct (ov) enlarged and folded; prostate gland inconspicuous and bound to oviduct. Talon (ta) small, short and club shaped. Hermaphroditic duct (hd) bearing long seminal vesicle (sv) about three times longer than the length from talon to branching point of seminal vesicle (Fig. 14 A). Vaginal wall with smooth surface of strong recticulate vaginal folds (Fig. 17 I).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
FF8E29E4DB0C7879BABABB1733787FE2.taxon	etymology	Etymology. The specific epithet " epipedis " is derived from the Greek " epipedos " meaning " flat " It refers to the flattened- or depressed-heliciform shell.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
FF8E29E4DB0C7879BABABB1733787FE2.taxon	distribution	Distribution. This species is known only from the type locality.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
036D268EA51D21F334E0ED853B2A616C.taxon	diagnosis	Diagnosis. This new species is distinguished from Discartemon plussensis, Discartemon leptoglyphus, Discartemon platymorphus, Discartemon roebeleni and Discartemon collingei by having a larger shell with a smooth shell surface, a shouldered and slightly axially deflected last whorl, two longitudinal furrows and seven apertural lamellae. Its genitalia are distinctive in having a long but thick penial appendix.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
036D268EA51D21F334E0ED853B2A616C.taxon	description	Description. Shell. Shell depressed-heliciform, white and translucent; whorls 6 - 61 / 2, spire only slightly convex, with distinct suture. Shell surface glossy, smooth with thin growth lines. Embryonic shell large, about 21 / 2 whorls and with smooth surface; following whorls regularly coiled. Last whorl shouldered, slightly axially deflected, regularly expanded, and two short longitudinal furrows present. Umbilicus widely open and deep. Aperture semi-ovate; peristome discontinuous, expanded and reflected. Apertural dentition with strong parietal and small upper parietal lamellae separated at right angle, one small upper palatal, one palatal, one basal, one columellar, and one small supracolumellar lamella (Fig. 7 E). Genitalia organs: Atrium (at) long and slender. Penis (p) long; proximal penis slender; middle part enlarged with a long but thick penial appendix (pa) about half of penis length; distal penis long and slender (Fig. 14 C). Penial sheath (ps) thin, extending about half of penis length; penial sheath retractor muscle (psr) very thin, originating at atrium and inserting distally on penial sheath. Vas deferens (vd) passes through about one-fifth of penial sheath length before entering into penis distally (Fig. 14 D). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction. Internal wall of atrium generally smooth with numerous atrial pores (Fig. 19 J). Penial wall with scattered light brown penial hooks, about 10 hooks / 200 µm 2 (Fig. 19 K). Hooks located on penial wall. Penial hooks small (<0.03 mm in length), expanded at base, tips pointed and curved towards genital orifice (Fig. 19 L, M). Vagina (v) very short, about one-fourth of penis length. Gametolytic duct (gd) a long narrow tube extending as far as albumin gland; gametolytic sac (gs) ovate. Free oviduct (fo) very long, slender, proximal with equivalent diameter with vagina, and tapering to smaller tube distally. Oviduct (ov) folded and prostate gland inconspicuous. Talon (ta) small, and very short. Hermaphroditic duct (hd) bearing long seminal vesicle (sv) about one and half times longer than the length from talon to branching point of seminal vesicle (Fig. 14 C). Vaginal wall generally smooth, surface with numerous pores (Fig. 19 N).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
036D268EA51D21F334E0ED853B2A616C.taxon	etymology	Etymology. The specific epithet " flavacandida " is derived from the Latin " flavus " meaning " yellow " and " candidus " meaning " bright or transparent ".	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
036D268EA51D21F334E0ED853B2A616C.taxon	distribution	Distribution. This species seems to be restricted to limestone at the type locality.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
7637ED20B042A34298F23F3B22166278.taxon	description	Description. Shell. Shell globose-heliciform, white and translucent; whorls 6 - 61 / 2, spire conical with distinct suture. Shell surface glossy, with transverse ridges that diminish below periphery; varices present. Embryonic shell large, about 21 / 2 whorls, with a smooth surface; following whorls regularly coiled. Last whorl rounded, regularly expanded; umbilicus widely open and deep. Aperture sub-quadrangular; peristome discontinuous, thickened, expanded and reflected. Apertural dentition with one strong parietal, one palatal, one basal and one columellar lamella (Fig. 8 B). Sometimes basal lamella absent (Fig. 8 F), or upper palatal and supracolumellar lamellae present (Fig. 8 G). Radula. Each row consists of 21 - 33 teeth with formula (10 - 16) - 1 - (10 - 16). Central tooth very small and triangular with a pointed cusp. Lateral and marginal teeth undifferentiated, unicuspid and lanceolate. Latero-marginal teeth gradually reduce in size, with outermost teeth much smaller and shorter than inner teeth (Fig. 22 E). Genitalia organs. Atrium (at) long. Penis short and slender. Penial sheath (ps) extending entire penis length; penial sheath retractor muscle (psr) very thin, originating at genital orifice wall and inserting distally on penial sheath (Fig. 15 A). Vas deferens (vd) passes through about one-seventh of penial sheath length before entering into penis distally (Fig. 15 B). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction. Internal wall of atrium generally corrugated (Fig. 20 A). Penial wall with scattered, transparent penial hooks, about 8 hooks / 200 µm 2. Hooks located on very short penial papilla (pp). Penial hooks small (<0.03 mm in length), short, expanded at base, tips pointed and curved towards genital orifice (Fig. 20 C, D). Vagina (v) short, about half of penis length. Gametolytic duct (gd) a long and slender tube extending as far as albumin gland; gametolytic sac (gs) ovate. Free oviduct (fo) short, about same length as vagina; oviduct (ov) folded; prostate gland inconspicuous and bound to oviduct. Talon (ta) small, very short. Hermaphroditic duct (hd) bearing extremely long seminal vesicle (sv) (Fig. 15 C). Vaginal wall generally with longitudinal vaginal folds (Fig. 20 E).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
7637ED20B042A34298F23F3B22166278.taxon	distribution	Distribution. This species is found in limestone habitats and is common in southern Thailand. The geographic distribution records are in eight Provinces, ranging from 10 ° N to 6 ° N: Suratthani, Nakhon Si Thammarat, Krabi, Phangnga, Phatthalung, Trang, Satun, and Songkhla.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
A3DCC1A395D1953CCED7CB855898D5B9.taxon	diagnosis	Diagnosis. Conchologically this new species superficially resembles Discartemon roebeleni and Discartemon megalostraka sp. n. It differs from Discartemon roebeleni in having a higher spire, a very long penis, a penial sheath extending fourth-fifths of the penis length, a smooth atrium wall with atrial pores, and a short seminal vesicle. It differs from Discartemon megalostraka sp. n. in having a smaller shell and apertural dentition of four lamellae, and a shorter free oviduct, vas deferens and seminal vesicle. Discartemon kotanensis sp. n. differs from Discartemon stenostomus and Discartemon collingei in having a higher spire, transverse ridges reaching the periphery, the last whorl rounded and regularly coiled, and apertural dentition of one straight parietal, one basal and one columellar lamella. Also, Discartemon collingei is slightly axially deflected.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
A3DCC1A395D1953CCED7CB855898D5B9.taxon	description	Description. Shell. Shell globose-heliciform, white and translucent; whorls 6 - 61 / 2, spire elevated conical, with distinct suture. Shell surface glossy, with trans verse ridges that diminish below periphery; varices present. Embryonic shell large, about 21 / 2 whorls, with a smooth surface; following whorls regularly coiled. Last whorl rounded and regularly expanded; umbilicus widely open and deep. Aperture sub-quadrangular; peristome discontinuous, thickened, expanded and reflected. Apertural dentition of one strong parietal, one palatal, one basal and one columellar lamella (Fig. 9 G). Radula. Each row consists of 27 - 31 teeth with formula (13 - 15) - 1 - (13 - 15). The central tooth is very small and triangular with a pointed cusp. Lateral and marginal teeth are undifferentiated, unicuspid and lanceolate. Latero-marginal teeth gradually reduce in size, with outermost teeth much smaller and shorter than inner teeth (Fig. 22 F). Genital organs. Atrium (at) short. Penis (p) very long and slender. Penial sheath (ps) thin and extending about fourth-fifths of penis length, and penial sheath retractor muscle (psr) very thin, originating at genital orifice wall and inserting distally on penial sheath (Fig. 15 D). Vas deferens (vd) passes a very short distance through penial sheath before entering into penis distally (Fig. 15 E). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction. Internal wall of atrium generally smooth with atrial pores (Fig. 20 F). Penial wall with dense and transparent penial hooks, about 20 hooks / 200 µm 2 (Fig. 20 H). Hooks located on short penial papillae (pp). Penial hooks small (<0.03 mm in length), expanded at base, tips pointed and curved towards genital orifice (Fig. 20 I). Vagina (v) short, about one-fifth of penis length. Gametolytic duct (gd) a long tube extending as far as albumin gland; gametolytic sac (gs) ovate. Free oviduct (fo) short, of about same length as vagina. Oviduct (ov) slender and folded; prostate gland inconspicuous. Talon (ta) small, very short and club shaped. Hermaphroditic duct (hd) bearing long seminal vesicle (sv) about twice as long as the length from talon to branching point of seminal vesicle (Fig. 15 F). Vaginal wall generally with longitudinal vaginal folds (Fig. 20 J).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
A3DCC1A395D1953CCED7CB855898D5B9.taxon	etymology	Etymology. The specific epithet is derived from the type locality of this new species, the Ko Tan, Ko Samui, Suratthani Province.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
A3DCC1A395D1953CCED7CB855898D5B9.taxon	distribution	Distribution. This species is known from the type locality and few limestone outcrops on the southern mainland.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
2A35E3C3D2F695D31B5B70B42DD69F5A.taxon	diagnosis	Diagnosis. This species differs from Discartemon lemyrei in its widely open umbilicus and apertural dentition of six lamellae. It differs from Discartemon roebeleni in having a much larger shell, higher spire, upper palatal and supracolumellar lamellae, a very long penis, penial sheath and free oviduct, shorter seminal vesicle, and in having atrial pores. Discartemon megalostraka sp. n. can be distinguished from Discartemon stenostomus in its larger shell, higher spire, transverse ridges, sub-quadrangular aperture, its straight parietal lamella, and in having upper palatal and basal lamellae.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
2A35E3C3D2F695D31B5B70B42DD69F5A.taxon	description	Description. Shell. Shell globose-heliciform, white and translucent; whorls 7 - 71 / 2, spire elevated conical, with a distinct suture. Shell surface glossy with fine transverse ridges that diminish below periphery; varices present. Embryonic shell large, about 21 / 2 whorls, with a smooth surface; following whorls regularly coiled. Last whorl rounded and regularly expanded; umbilicus widely open and deep. Aperture sub-quadrangular; peristome discontinuous, thickened, expanded and reflected. Apertural dentition of one strong parietal, one small upper palatal, one palatal, one basal, one columellar and one small supracolumellar lamella (Fig. 10 A). Radula. Each row consists of 19 - 21 teeth with formula (9 - 10) - 1 - (9 - 10). The central tooth is small and triangular with a pointed cusp. Lateral and marginal teeth are undifferentiated and large, unicuspid and lanceolate. Latero-marginal teeth gradually reduce in size, with outermost teeth much smaller and shorter than inner teeth (Fig. 22 G). Genital organs. Atrium (at) very short. Penis (p) very long and slender. Penial sheath (ps) thin, extending about third-fourths of penis length. Penial sheath retractor muscle (psr) very thin, originating at genital orifice wall and inserting distally on penial sheath (Fig. 16 A). Vas deferens (vd) passes a very short distance through penial sheath before entering into penis distally (Fig. 16 B). Penial retractor muscle (pr) thin and long, inserting at penis and vas deferens junction. Internal wall of atrium with large atrial pores (Fig. 21 A). Penial wall with scattered and transparent penial hooks, about 9 hooks / 200 µm 2 (Fig. 21 B). Hooks located on penial wall. Penial hooks small (<0.02 mm in length), expanded at base, tips pointed and curved towards genital orifice (Fig. 21 C-E). Vagina (v) very short. Gametolytic duct (gd) a long and narrow tube extending as far as albumin gland; gametolytic sac (gs) ovate. Free oviduct (fo) extremely long, proximal part a straight cylindrical tube, distal part corrugated. Oviduct (ov) enlarged and folded; prostate gland inconspicuous. Talon (ta) small, very short and club shaped. Hermaphroditic duct (hd) bearing a long seminal vesicle (sv) about four times as long as the length from talon to branching point of seminal vesicle (Fig. 16 C). Vaginal wall with longitudinal vaginal folds (Fig. 21 F).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
2A35E3C3D2F695D31B5B70B42DD69F5A.taxon	etymology	Etymology. The specific epithet " megalostraka " is derived from the Greek " megalos " meaning " big " and " ostrako " meaning " shell ".	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
2A35E3C3D2F695D31B5B70B42DD69F5A.taxon	distribution	Distribution. This species is known from several limestone hills in southern Thailand, particularly in the western part of the southern mainland. The animals can be found at altitudes up to 20 meters amsl.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
F3FE78E3033BAAE61E5E5096AA48A491.taxon	diagnosis	Diagnosis. This new species is superficially similar to Discartemon roebeleni and Discartemon kotanensis sp. n., but the distinguishing characters are the smaller shell, lower spire, angular last whorl, very long penis and free oviduct, short seminal vesicle, and penial hooks with elongated bases. Discartemon triancus sp. n. can be distinguished from Discartemon megalostraka sp. n. by having a smaller shell, lower spire, four apertural lamellae, a longer penis, short free oviduct, and slender penial hooks with elongated bases. Discartemon triancus sp. n. differs from Discartemon conicus sp. n. in having a lower spire with shallow suture, transverse ridges, in lacking a sinulus, and in having four apertural lamellae.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
F3FE78E3033BAAE61E5E5096AA48A491.taxon	description	Description. Shell. Shell globose-heliciform, white and translucent; whorls 51 / 2 - 6, spire only slightly convex, with distinct suture. Shell surface glossy with transverse ridges that diminish below the periphery; varices present. Embryonic shell large, about 21 / 2 whorls, with a smooth surface; following whorls regularly coiled. Last whorl angular, regularly expanded; umbilicus widely open and deep. Aperture subcircular; peristome discontinuous, thin and expanded. Apertural dentition of one parietal, one palatal, one small basal and one columellar lamella (Fig. 10 C). Radula. Each row consists of 27 - 43 teeth with formula (13 - 21) - 1 - (13 - 21). The central tooth is very small with pointed cusp. Lateral and marginal teeth are undifferentiated, unicuspid and lanceolate. Latero-marginal teeth gradually reduce in size, with outermost teeth much smaller and shorter than inner teeth (Fig. 22 H). Genital organs. Atrium (at) very short. Penis (p) extremely thin, long; becoming enlarged distally. Penial sheath (ps) thin, extending about half of penis length. Penial sheath retractor muscle very thin (psr), originating at atrium and inserting distally on penial sheath (Fig. 16 D). Vas deferens (vd) passes a very short distance through penial sheath before entering into penis distally (Fig. 16 E). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction. Internal wall of atrium generally smooth with pores (Fig. 21 G). Penial wall with scattered and transparent penial hooks, about 11 hooks / 200 µm 2 (Fig. 21 H). Hooks located on penial wall. Penial hooks small (<0.04 mm in length), short, with strongly elongated bases, tips pointed, and curved towards genital orifice (Fig. 21 I-K). Vagina (v) short. Gametolytic duct (gd) a long and slender tube extending as far as albumin gland; gametolytic sac (gs) ovate. Free oviduct (fo) with almost same diameter as vagina and about twice as long as vagina. Oviduct (ov) enlarged and folded; prostate gland inconspicuous. Talon (ta) small, short and slender. Hermaphroditic duct (hd) bearing a short seminal vesicle (sv) nearly equal to the length from talon to branching point of seminal vesicle (Fig. 16 F). Vaginal wall with longitudinal vaginal folds (Fig. 21 L).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
F3FE78E3033BAAE61E5E5096AA48A491.taxon	etymology	Etymology. The specific epithet " triancus " is derived from the Latin " triangulum " meaning " triangle " and " uncus " meaning " hook ".	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
F3FE78E3033BAAE61E5E5096AA48A491.taxon	distribution	Distribution. Known only from the type locality.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
B30CCB44A1EF66FC14499FA70EF51321.taxon	diagnosis	Diagnosis. This species differs from Discartemon roebeleni, Discartemon sangkarensis, Discartemon vandermeermohri and Discartemon kotanensis sp. n., in having a smaller shell, higher spire, a nearly smooth shell surface, an angular last whorl, a sub-quadrangular aperture with a sinulus, and in having only one parietal lamella.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
B30CCB44A1EF66FC14499FA70EF51321.taxon	description	Description. Shell. Shell globose-heliciform, white and translucent; whorls 6, spire elevated conical, with distinct suture. Shell surface glossy, smooth with thin transverse ridges near aperture; varices present. Embryonic shell large, about 21 / 2 whorls, with a smooth surface; following whorls regularly coiled. Last whorl angular, inflated and regularly expanded. Umbilicus open and deep. Aperture sub-quadrangular with sinulus; peristome discontinuous, expanded and reflected. Apertural dentition of only one parietal lamella (Fig. 10 E).	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
B30CCB44A1EF66FC14499FA70EF51321.taxon	distribution	Distribution. Known only from the type locality among limestone karsts up to 100 meters amsl, surrounded by mangrove forests on the northeast Langkawi Island coastline.	en	Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben, Panha, Somsak (2014): Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401: 45-107, DOI: http://dx.doi.org/10.3897/zookeys.401.7075, URL: http://dx.doi.org/10.3897/zookeys.401.7075
