Discartemon deprima

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This page should be cited as follows (rationale):
Siriboon T, Sutcharit C, Naggs F, Rowson B, Panha S (2014) Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae). ZooKeys 401 : 45–107, doi. Versioned wiki page: 2014-04-14, version 44214, https://species-id.net/w/index.php?title=Discartemon_deprima&oldid=44214 , contributors (alphabetical order): Pensoft Publishers.

Citation formats to copy and paste

BibTeX:

@article{Siriboon2014ZooKeys401,
author = {Siriboon, Thanit, Sutcharit, Chirasak, Naggs, Fred, Rowson, Ben AND Panha, Somsak},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae)},
year = {2014},
volume = {401},
issue = {},
pages = {45--107},
doi = {10.3897/zookeys.401.7075},
url = {http://www.pensoft.net/journals/zookeys/article/7075/abstract},
note = {Versioned wiki page: 2014-04-14, version 44214, https://species-id.net/w/index.php?title=Discartemon_deprima&oldid=44214 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae)
A1 - Siriboon T, Sutcharit C, Naggs F, Rowson B
A1 - Panha S
Y1 - 2014
JF - ZooKeys
JA -
VL - 401
IS -
UR - http://dx.doi.org/10.3897/zookeys.401.7075
SP - 45
EP - 107
PB - Pensoft Publishers
M1 - Versioned wiki page: 2014-04-14, version 44214, https://species-id.net/w/index.php?title=Discartemon_deprima&oldid=44214 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.401.7075

Wikipedia/ Citizendium:

<ref name="Siriboon2014ZooKeys401">{{Citation
| author = Siriboon T, Sutcharit C, Naggs F, Rowson B, Panha S
| title = Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae)
| journal = ZooKeys
| year = 2014
| volume = 401
| issue =
| pages = 45--107
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.401.7075
| url = http://www.pensoft.net/journals/zookeys/article/7075/abstract
| pmc =
| accessdate = 2020-10-31

}} Versioned wiki page: 2014-04-14, version 44214, https://species-id.net/w/index.php?title=Discartemon_deprima&oldid=44214 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Pulmonata
Familia: Streptaxidae
Genus: Discartemon

Name

Discartemon deprima Siriboon & Panha sp. n.Wikispecies linkZooBank linkPensoft Profile

Type material

Holotype CUMZ 6247 (Fig. 5E). Measurement: shell height 2.5 mm, shell width 8.2 mm, and with 5 whorls. Paratypes: CUMZ 3573 (2 shells), NHMUK 2013675 (1 shell), and SMF (1 shell) from the type locality. Paratype: CUMZ 6259 from Ban Tam Thong, Prathiew, Chumphon.

Other material examined

Khao Pu-Khao Ya National Park, Sri Banphot, Phatthalung: CUMZ 3670.

Type locality

Khao Hup Ta Hae, Prathiew, Chumphon, Thailand, 10°48'44.9"N, 99°25'9.0"E.

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.

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 2½ 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. 5E).

Etymology

The specific epithet “deprima” is derived from the Latin “deprimo” meaning “depress”. It refers to the depressed spire of this new species.

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.

Remarks

There is some variation in this species in the discontinuous peristome and the presence of a sinulus. The samples from Patthalung (CUMZ 3670, 2 shells) have a continuous peristome and lack a sinulus. Currently, no living examples have been found.

Original Description

  • Siriboon, T; Sutcharit, C; Naggs, F; Rowson, B; Panha, S; 2014: Revision of the carnivorous snail genus Discartemon Pfeiffer, 1856, with description of twelve new species (Pulmonata, Streptaxidae) ZooKeys, 401: 45-107. doi

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