Plectostoma kakiense

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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 43828, https://species-id.net/w/index.php?title=Plectostoma_kakiense&oldid=43828 , 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 43828, https://species-id.net/w/index.php?title=Plectostoma_kakiense&oldid=43828 , 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 43828, https://species-id.net/w/index.php?title=Plectostoma_kakiense&oldid=43828 , 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 = 2019-11-12

}} Versioned wiki page: 2014-03-25, version 43828, https://species-id.net/w/index.php?title=Plectostoma_kakiense&oldid=43828 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Ordo: Architaenioglossa
Familia: Diplommatinidae
Genus: Plectostoma

Name

Plectostoma kakiense (Tomlin, 1948)Wikispecies linkPensoft Profile

Type material

Holotype: BMNH 1948.10.2.3(1) (seen).

Other examined materials

ZMA 136009(1), ZMA 162094(5), BOR 445(1), BOR 5516(>25), BOR 5517(>10), BOR 5598(3), V 8789(2).

Diagnosis

Shares with Plectostoma kubuensis the general shell form, in terms of apex, spire, and tuba shape, but differs by having two parietal constriction teeth.

Description

Apex. Shape: slightly to moderately convex.
Spire. Height: 1.7–2.1 mm. Width: 1.5–1.6 mm. Number of whorls: 3 3/4–4 1/4. Apical spire shape: depressed conical. Basal spire shape: ovoid. Whorl periphery: moderately to distinctly convex. Umbilicus: partially closed by tuba.
Constriction. Parietal teeth: two. Basal teeth: none.
Tuba. Coiling direction: type 2 and aperture visible in right lateral view. Tuba whorl length in proportion to spire last whorl: ca. 5/8–3/4. Proportion of tuba that attaches to spire: whole.
Aperture and peristome. Peristome: double peristomes. Outer peristome shape: similar to inner peristome, projected all around, except the posterior part, where the two lateral sides are slightly more projected than the anterior side.
Spiral lines. Thick lines: absent. Thin lines: present.
Radial ribs. Rib density: 8–10 ribs per mm. Rib intensity: thin. Shape: straight to slightly curved. Inclination: moderately prosoclin.

Distribution

Type locality. Kaki Bukit (6°38'42"N, 100°12'6"E) (Figure 18C). Distribution range. Wang Kelian limestone outcrops.

Conservation status

Near threatened. To date, only two populations are known for two large limestone outcrops in the vast limestone formation in Perlis. These two locations are Kaki Bukit and Wang Kelian, both located in the protected Wang Kelian State Park.
Although Kaki Bukit is a large limestone outcrop with good forest cover, the population density of Plectostoma kakiense is very low. During a survey in May 2011, this species was only found near the top of Kaki Bukit where several hundred individuals were found at one location (limestone wall) within an area of ca. 10 m2. There were several small populations (fewer than 10 individuals) in small pockets of suitable habitat. The population in Wang Kelian was recorded by Ali and Yaakob (2001)[2], but its status is not known. No live or dead individuals were collected at the dozen isolated limestone hills located within 5 km around Wang Kelian State Park.

Discussion

See discussion under Plectostoma kubuensis.

Taxon Treatment

  • 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

Other References

  1. van Benthem Jutting W (1952) The Malayan species of Opisthostoma (Gastropoda, Prosobranchia, Cyclophoridae), with a catalogue of all the species hitherto described. The Bulletin of the Raffles Museum 24(5): 5–61. http://rmbr.nus.edu.sg/rbz/biblio/24/24brm005-062.pdf
  2. 2.0 2.1 Ali J, Yaakob A (2001) Diversity and importance of gastropods in Wang Kelian, Perlis. In: Faridah-Hanum I Osman K Latiff (Eds) Kepelbagaian Biologi dan Pengurusan Taman Negeri Perlis: Persekitaran Fizikal dan Biologi Wang Kelian. Jabatan Perhutanan Perlis, Malaysia, 139–147.

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