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Type: Article
Published: 2022-11-18
Page range: 401-425
Abstract views: 2310
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Description of a new subterranean breeding brown frog (Ranidae: Rana) from Japan

1Kitakyushu Museum of Natural History & Human History, Higashida 2-4-1, Yahatahigashi-ku, Kitakyushu, Fukuoka 805-0071, JAPAN
Graduate School of Human and Environmental Studies, Kyoto University, Yoshida Nihonmatsu-cho, Sakyo-ku, Kyoto 606-8501, JAPAN
Hazama-cho 1740-1-201, Hachioji, Tokyo 193-0941, JAPAN
Amphibia character displacement cyto-nuclear discordance phylogeny Rana kyoto sp. nov. reproductive interference


Taxonomic relationship of two forms of Rana tagoi, a brown frog endemic to Japan, is assessed. Based on morphological and bioacoustical comparisons, as well as molecular analysis, we consider the large-form-lineage as true R. tagoi, and describe the small-form-lineage as Rana kyoto sp. nov. The new species and R. tagoi occur sympatrically in many places around the Kinki District, although the former can be distinguished from the latter by smaller body size, more developed dark marking on ventral side of legs, less developed toe webs, and advertisement call with fewer notes and lower dominant frequency. Rana kyoto sp. nov. sympatric with R. tagoi show smaller body size than the allopatric ones, whereas R. tagoi sympatric with the new species show larger body size than the allopatric ones, suggesting that the character displacement of body size occurs between the two species around the type locality of Rana kyoto sp. nov.



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