Biology:Leptolalax kajangensis

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Leptolalax kajangensis
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Megophryidae
Genus: Leptolalax
Species:
L. kajangensis
Binomial name
Leptolalax kajangensis
Grismer, Grismer & Youmans, 2004[2]

Leptolalax kajangensis (the Kajang slender litter frog) is a species of amphibian in the family Megophryidae. It is endemic to Malaysia and only known from its type locality, a small cave near the top of Gunung Kajang (=Mount Kajang), on Tioman Island, a small island located 32 km off the east coast of Peninsular Malaysia.[3]

Description

The type series consists of two adult males, 35–36 mm (1.4–1.4 in) in snout-vent length—which is relatively large within the genus Leptolalax. The type locality is a cave, and the type specimens were observed calling near the edge of a pond in the cave. Some tadpoles were collected from the same pond and assumed to represent the same species. There is also an earlier collection of tadpoles from a lower altitude on the same mountain that are morphologically similar to the ones at the type locality but that differ in colouration; they might represent another species.[2]

Biogeography

Tioman Island was connected with Peninsular Malaysia as late as the Pleistocene. However, Grismer et al. considered it unlikely that Leptolalax kajangensis could have dispersed over flat, low-lying landscape to Gunung Kajang; instead, they suggest that the presence of this species on Tioman Island represents much older vicariance, that is, the species (or its ancestors) would have reached Tioman Island when it was still part of a larger mountainous landscape.[2]

References

  1. IUCN SSC Amphibian Specialist Group. 2018. Leptolalax kajangensis. The IUCN Red List of Threatened Species 2018: e.T61840A90985016. https://dx.doi.org/10.2305/IUCN.UK.2018-2.RLTS.T61840A90985016.en. Downloaded on 22 December 2018.
  2. 2.0 2.1 2.2 Grismer, L. Lee; Jesse M. Grismer; Timothy M. Youmans (2004). "A new species of Leptolalax (Anura: Megophryidae) from Pulau Tioman, West Malaysia". Asiatic Herpetological Research 10: 8–11. 
  3. Frost, Darrel R. (2013). "Leptolalax kajangensis Grismer, Grismer, and Youmans, 2004". Amphibian Species of the World 5.6, an Online Reference. American Museum of Natural History. http://research.amnh.org/vz/herpetology/amphibia/?action=names&taxon=Leptolalax+kajangensis. Retrieved 18 October 2013. 

External links

Wikidata ☰ Q2239791 entry