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.[1] It is a small frog, males being 19mm25mm and females 21mm25mm snout-vent length.[2]
Taxonomic work by Robert F. Inger and Bryan L. Stuart in 2010[2] 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.[1] While the species are morphologically similar, mainly differing in body size (L. hascheanus is smaller), they are genetically distinct.[2] 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[1] than what was reported in the latest (2004) IUCN assessment for this species.
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.[2] More importantly, careful observations have showed that L. limborgi has free-swimming but endotrophic larvae; this probably applies to L. hascheanus too.[3]