Huanren frog

The Huanren frog (Rana huanrensis) is a species of true frog found in East Asia. It was originally believed to be endemic to Huanren County, Liaoning, China, but was later also found in South Korea; it is presumed to be present in North Korea, as well.[1] It is closely related to the Dybowski's frog, Rana dybowskii, and specimens collected before 1991 were incorrectly identified as that species. Distinguishing factors include the absence of a vocal sac.[2]

Huanren frog
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Amphibia
Order:	Anura
Family:	Ranidae
Genus:	Rana
Species:	R. huanrensis
Binomial name
Rana huanrensis Fei, Ye & Huang, 1991

The Huanren frog is found in and around rivers and streams in hilly terrain. The type locality in Huanren is 520 m (1,710 ft) above sea level, and specimens from Korea have also only been found at altitudes over 500 m (1,600 ft). Specimens from South Korea have been collected in the provinces of Gangwon-do, Gyeongsangbuk-do, and eastern Gyeonggi-do. Egg clutches, which are small and clustered, are deposited on submerged rocks in the streams which this species favors.

References

1. Matsui, M. & Feng, X. (2004). "Rana huanrensis". IUCN Red List of Threatened Species. 2004: e.T58619A11812585. doi:10.2305/IUCN.UK.2004.RLTS.T58619A11812585.en.
2. "Rana huanrensis". AmphibiaWeb: Information on amphibian biology and conservation. Retrieved 10 November 2012.

• "Rana huanrensis". Amphibian Species of the World 5.0. Archived from the original on 2007-07-15. Retrieved 2007-06-12.
• Yang, Suh-Yung; et al. (2000). "First record of a Brown Frog Rana huanrenensis (Family Ranidae) from Korea" (PDF). Korean Journal of Biological Sciences. 4: 45–50. Archived from the original (PDF) on 2007-09-30.