Discartemon leptoglyphus

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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 44222, https://species-id.net/w/index.php?title=Discartemon_leptoglyphus&oldid=44222 , contributors (alphabetical order): Pensoft Publishers.

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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 44222, https://species-id.net/w/index.php?title=Discartemon_leptoglyphus&oldid=44222 , 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 44222, https://species-id.net/w/index.php?title=Discartemon_leptoglyphus&oldid=44222 , 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 = 2020-12-05

}} Versioned wiki page: 2014-04-14, version 44222, https://species-id.net/w/index.php?title=Discartemon_leptoglyphus&oldid=44222 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Pulmonata
Familia: Streptaxidae
Genus: Discartemon

Name

Discartemon leptoglyphus Benthem Jutting, 1954Wikispecies linkPensoft Profile

  • Discartemon leptoglyphus Benthem Jutting, 1954: 90–92, fig. 7. Type locality: Gunong Rapat, near Ipoh, Perak, Malaysia. Benthem Jutting 1959[1]: 168. Maassen 2001[2]: 87.

Material examined

Holotype ZMA 3.54.019 (Fig. 6E). Paratypes NHMUK 1954.4.3.3 (1 shell), ZMA 3.54.020 (1 shell), ZMA 3.54.021 (5 shells). Ampang Baru, Ipoh, Perak, Malaysia, 6°29'36.2"N, 100°15'53.2"E, CUMZ 6010 (3 shells; Fig. 6F). Lost World, Tanjung Rambutan, Ipoh, Perak, Malaysia: CUMZ 6007 (9 specimens in ethanol; Figs 2C, 13A, B, 18F–L), 6260 (4 shells).

Description

Shell. Shell depressed-heliciform, white and semi-transparent; whorls 5–5½, 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. 6E).
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. 13A). Vas deferens (vd) passes through entire length of penial sheath before entering into penis distally (Fig. 13B). Penial retractor muscle (pr) thin and very long, inserting at penis and vas deferens junction.
Internal wall of atrium with smooth surface (Fig. 18F). Penial wall with translucent penial hooks densely scattered, about 18 hooks/200 µm2 (Fig. 18G). Hooks located on ovate penial papillae (pp). Penial hooks small (< 0.04 mm in length), tips obtuse and curved towards genital orifice (Fig. 18H–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. 13A).
Vaginal wall generally smooth (Fig. 18L).

Distribution

This species is known from the limestone mountains around the type locality in Perak, Malaysia.

Remarks

Compared with Discartemon platymorphus, this species differs in having a smaller shell, with transverse ridges appearing on the entire shell and a more inflated last whorl. Discartemon leptoglyphus can be distinguished from Discartemon stenostomus by having a depressed-heliciform shell with lower spire, transverse ridges on the entire shell, the last whorl angular, and apertural dentition of one straight parietal lamella. In addition, the penial appendix in Discartemon leptoglyphus is relatively much longer than that shown for Discartemon stenostomus (see Berry 1965[3]).

Taxon Treatment

  • 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

Other References

  1. Benthem Jutting W (1959) Catalogue of the non-marine Mollusca of Sumatra and of its satellite islands. Beaufortia 7: 41-191.
  2. Maassen W (2001) A preliminary checklist of the non-marine Molluscs of West-Malaysia. “A handlist”. De Kreukel, Extra Editie 2001: 1-155.
  3. Berry A (1965) The genital systems of Discartemon stenostomus van Benthem Jutting and Huttonella bicolor (Hutton) (Pulmonata, Streptaxidae) from Malaya. Proceedings of the Malacological Society of London 36: 221-228.

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