Limnonectes hascheanus

Limnonectes hascheanus is a species of frog in the family Dicroglossidae. It is found in the Malay Peninsula (from southern Myanmar and Thailand to Peninsular Malaysia); its occurrence in the Andaman Islands requires confirmation.[2] It is a small frog, males being 19–25 mm (0.75–0.98 in) and females 21–25 mm (0.83–0.98 in) snout-vent length.[3]

Limnonectes hascheanus
Limnonectes hascheanus in Ko Lanta National Park, Thailand

Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Dicroglossidae
Genus: Limnonectes
Species:
L. hascheanus
Binomial name
Limnonectes hascheanus
(Stoliczka, 1870)
Synonyms

Polypedates hascheanus Stoliczka, 1870
Taylorana hascheana (Stoliczka, 1870)

Taxonomy

Taxonomic work by Robert F. Inger and Bryan L. Stuart in 2010[3] on Limnonectes hascheanus and L. limborgi has led to better understanding of these similar species — L. limborgi has been considered a junior synonym of L. hascheanus.[2] While the species are morphologically similar, mainly differing in body size (L. hascheanus is smaller), they are genetically distinct.[3] This taxonomic work has also led to redefinition of ranges of both species, and the range of L. hascheanus (as presently defined) is much more restricted[2] than what was reported in the latest (2004) IUCN assessment for this species.[1]

A male frog in breeding season

Life cycle

The life cycle of Limnonectes hascheanus has earlier been reported to have direct development (no free-swimming tadpole stage, which instead hatch as tiny full-formed frogs). Notice that the original observations of this phenomenon came from outside the range of L. hascheanus and probably apply to L. limborgi.[3] More importantly, careful observations have showed that L. limborgi has free-swimming but endotrophic larvae; this probably applies to L. hascheanus too.[4]

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References
  1. van Dijk, P.P.; Stuart, B. & Das, I. (2004). "Limnonectes hascheanus". IUCN Red List of Threatened Species. 2004. Retrieved 11 May 2013.CS1 maint: ref=harv (link)
  2. Frost, Darrel R. (2014). "Limnonectes hascheanus (Stoliczka, 1870)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 15 May 2014.
  3. Inger, Robert F.; Stuart, Bryan L. (2010). "Systematics of Limnonectes (Taylorana) Dubois". Current Herpetology. 29: 51–68. doi:10.3105/018.029.0201.
  4. Rowley, J. J. L.; Altig, R. (2012). "Nidicolous development in Limnonectes limborgi (Anura, Dicroglossidae)". Amphibia-Reptilia. 33: 145–149. doi:10.1163/156853812X626179.
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