Plectostoma kayiani

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This page should be cited as follows (rationale):
Liew T, Vermeulen J, Marzuki M, Schilthuizen M (2014) A cybertaxonomic revision of the micro-landsnail genus Plectostoma Adam (Mollusca, Caenogastropoda, Diplommatinidae), from Peninsular Malaysia, Sumatra and Indochina. ZooKeys 393 : 1–107, doi. Versioned wiki page: 2014-03-25, version 43822, https://species-id.net/w/index.php?title=Plectostoma_kayiani&oldid=43822 , contributors (alphabetical order): Pensoft Publishers.

Citation formats to copy and paste

BibTeX:

@article{Liew2014ZooKeys393,
author = {Liew, Thor-Seng, Vermeulen, Jaap Jan, Marzuki, Mohammad Effendi bin AND Schilthuizen, Menno},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {A cybertaxonomic revision of the micro-landsnail genus Plectostoma Adam (Mollusca, Caenogastropoda, Diplommatinidae), from Peninsular Malaysia, Sumatra and Indochina},
year = {2014},
volume = {393},
issue = {},
pages = {1--107},
doi = {10.3897/zookeys.393.6717},
url = {http://www.pensoft.net/journals/zookeys/article/6717/abstract},
note = {Versioned wiki page: 2014-03-25, version 43822, https://species-id.net/w/index.php?title=Plectostoma_kayiani&oldid=43822 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - A cybertaxonomic revision of the micro-landsnail genus Plectostoma Adam (Mollusca, Caenogastropoda, Diplommatinidae), from Peninsular Malaysia, Sumatra and Indochina
A1 - Liew T, Vermeulen J, Marzuki M
A1 - Schilthuizen M
Y1 - 2014
JF - ZooKeys
JA -
VL - 393
IS -
UR - http://dx.doi.org/10.3897/zookeys.393.6717
SP - 1
EP - 107
PB - Pensoft Publishers
M1 - Versioned wiki page: 2014-03-25, version 43822, https://species-id.net/w/index.php?title=Plectostoma_kayiani&oldid=43822 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.393.6717

Wikipedia/ Citizendium:

<ref name="Liew2014ZooKeys393">{{Citation
| author = Liew T, Vermeulen J, Marzuki M, Schilthuizen M
| title = A cybertaxonomic revision of the micro-landsnail genus Plectostoma Adam (Mollusca, Caenogastropoda, Diplommatinidae), from Peninsular Malaysia, Sumatra and Indochina
| journal = ZooKeys
| year = 2014
| volume = 393
| issue =
| pages = 1--107
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.393.6717
| url = http://www.pensoft.net/journals/zookeys/article/6717/abstract
| pmc =
| accessdate = 2019-06-20

}} Versioned wiki page: 2014-03-25, version 43822, https://species-id.net/w/index.php?title=Plectostoma_kayiani&oldid=43822 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Architaenioglossa
Familia: Diplommatinidae
Genus: Plectostoma

Name

Plectostoma kayiani Liew, Vermeulen, Marzuki & Schilthuizen, 2014 sp. n.Wikispecies linkZooBank linkPensoft Profile

Type material

Holotype: RMNH 330803 (1). Paratypes: V 8883(6), V 14243(1).

Etymology

This species is named after Kay Arnold and Ian Mellsop from New Zealand, who have generously supported wildlife conservation work in many parts of Peninsular Malaysia, including the forests around Lake Kenyir where this species was discovered.

Diagnosis

Shares with Plectostoma ikanensis the general shell form, in terms of spire and tuba shape, but differs by lacking thick spiral lines.

Description

Apex. Shape: slightly to moderately convex.
Spire. Height: 1.4–1.6 mm. Width: 1.2–1.4 mm. Number of whorls: 3 1/2–3 3/4. Apical spire shape: depressed conical. Basal spire shape: conical. Whorl periphery: distinctly convex. Umbilicus: open.
Constriction. Parietal teeth: none. Basal teeth: none.
Tuba. Coiling direction: type 2 and aperture visible from front view. Tuba whorl length in proportion to spire last whorl: ca. 5/8–3/4. Proportion of tuba that attaches to spire: almost whole except the part near the aperture.
Aperture and peristome. Peristome: double peristomes. Outer peristome shape: similer to inner peristome, projected all around, except the posterior part, where left lateral sides are slightly more projected than the anterior and right lateral side.
Spiral lines. Thick lines: absent. Thin lines: present.
Radial ribs. Rib density: 8–10 ribs per mm. Rib intensity: thin. Shape: slightly curved. Inclination: orthoclin.

Distribution

Type locality. Gua Bewah, Tasik Kenyir (4°51'3"N, 102°43'21"E).
Distribution range. To date, this species is only known to occur at two neighbouring limestone outcrops, namely, Gua Bewah and Gua Taat at the southern part of Tasik Kenyir (Figure 18C).

Conservation status

Least concern. The outcrops where this species is found, are partially submerged in Southeast-Asia’s largest man-made lake, Tasik Kenyir. Despite this, there is a good forest cover around and on the limestone outcrops. Furthermore, these two hills are located in a protected National Park.

Discussion

This species occurs sympatrically with Plectostoma tohchinyawi and Plectostoma whitteni.

Original Description

  • Liew, T; Vermeulen, J; Marzuki, M; Schilthuizen, M; 2014: A cybertaxonomic revision of the micro-landsnail genus Plectostoma Adam (Mollusca, Caenogastropoda, Diplommatinidae), from Peninsular Malaysia, Sumatra and Indochina ZooKeys, 393: 1-107. doi

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