IUCN threat status:

Least Concern (LC)

Comprehensive Description

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Rana huanrensis adult males measure up to 53.4 mm and adult females up to 58.8 mm SVL. Males have longer limbs, more developed forelimbs, and lack internal vocal sacs (Yang et al. 2000). It is morphologically similar to R. dybowskii; however, R. huanrensis can be distinguished by ventral coloration (see below) and absence of vocal sacs in males (present and paired in R. dybowskii (Kim et al. 2002). Male members of R. huanrensis also have a smaller SVL, relatively long lower arms, and shorter tibias, femurs, and feet compared to males of R. dybowskii (Yang et al. 2000).

Dorsal coloration is greyish, brown, brown-olive, or olive for Rana huanrensis . Dark spots may or may not be present (Kuzmin 1999). The male ventral color pattern is yellowish-gray, with tiny black dots covering the throat and chest. Females also have the tiny black dots covering the throat and chest, and during breeding season, the female ventral color is yellowish-green (Kim et al. 2002). In contrast, the sympatric species R. dybowskii can be distinguished by a milky white venter in males and red throat and chest patches in females (Kim et al. 2002).

This frog is sympatric with Rana dybowskii. Both frogs belong to the brown frog group. Rana huanrensis is morphologically and karyologically similar to R. dybowskii, and was originally misidentified in South Korea due to this similarity. However, R. huanrensis can be visibly distinguished by its ventral coloration patterns and lack of vocal sacs (Kim et al. 2002).

Those literate in Chinese can find more information at the Sichuan Journal of Zoology. Those literate in Korean can find more information at DAPTF.


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