Rana pirica Matsui, 1991

Class: Amphibia > Order: Anura > Family: Ranidae > Genus: Rana > Species: Rana pirica

Rana ezoensis Kawamura, Nishioka, Ueda, Borkin, and Wu, 1985, Zool. Sci., Tokyo, 2: 1010. Nomen nudum. Synonymy by Sumida, Ueda, and Nishioka, 2003, Zool. Sci., Tokyo, 20: 578.

Rana pirica Matsui, 1991, Japan. J. Herpetol., 14: 69. Holotype: OMNH Am 9527, by original designation. Type locality: "Nakano-sawa, Minami-ku, Sapporo-shi, Hokkaido Prefecture, Japan (43°00′N, 141°19′E, 300 m a. s. l.)".

Rana (Rana) piricaDubois, 1992, Bull. Mens. Soc. Linn. Lyon, 61: 333; Yuan, Zhou, Chen, Poyarkov, Chen, Jang-Liaw, Chou, Matzke, Iizuka, Min, Kuzmin, Zhang, Cannatella, Hillis, and Che, 2016, Syst. Biol., 65: 835.

Rana (Laurasiarana) piricaHillis and Wilcox, 2005, Mol. Phylogenet. Evol., 34: 311, by implication; see Dubois, 2006, Mol. Phylogenet. Evol., 42: 317-330, and Hillis, 2007, Mol. Phylogenet. Evol., 42: 331-338, for discussion.

English Names

Hokkaido Frog (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 109).

Ezo Brown Frog (Matsui, 1991, Japan. J. Herpetol., 14: 260).


Hokkaido I., Japan, and Sakhalin and Kurile Is., Russia.


In the Rana chensinensis group of the subgenus Rana, section Rana according to Dubois, 1992, Bull. Mens. Soc. Linn. Lyon, 61: 333. Formerly confused with Rana dybowskii and Rana chensinensis. Most closely related to Rana dybowskii and Rana ornativentris according to the original publication. Tanaka, Matsui, and Takenaka, 1994, Zool. Sci., Tokyo, 11: 753-757, discussed the relationships of this species with Rana ornativentris, Rana japonica, Rana tagoi, and Rana sakuraii. See Tanaka-Ueno, Matsui, Sato, Takenaka, and Takenaka, 1998, Japan. J. Herpetol., 17: 91-97, for phylogenetic relationships and discussion. Tanaka-Ueno, Matsui, Sato, Takenaka, and Takenaka, 1998, Zool. Sci., Tokyo, 15: 289-294, noted that the population of brown frogs on Sakhalin were Rana pirica, not Rana dybowskii. Trakimas, Matsui, Nishikawa, and Kasugai, 2003, J. Zool. Syst. Evol. Res., 41: 73-79, noted that allozyme variation is low among Hokkaido and Sakhalin populations. Sumida, Ueda, and Nishioka, 2003, Zool. Sci., Tokyo, 20: 567-580, reported on molecular phylogenetic relationships and reproductive incompatability of this species with other brown frogs in East Asia. Matsui, Bassarukin, Kasugai, Tanabe, and Takenaka, 1994, Alytes, 12: 1-14, reported on the seemingly morphologically intermediate nature of frogs from Sakhalin between Rana pirica and Rana dybowskii. Goris and Maeda, 2004, Guide Amph. Rept. Japan: 84-86, provided an account for Japan, map, and photograph. See comment under Rana dybowskii. Matsui, 1991, Japan. J. Herpetol., 14: 260-284, provided an extensive account for population in Far East Russia. Che, Pang, Zhao, Matsui, and Zhang, 2007, Zool. Sci., Tokyo, 24: 71-80, found Rana pirica to be imbedded within Rana dybowskii on the basis of mtDNA data. Yang, Zhou, Min, Matsui, Dong, Li, and Fong, 2017, Mol. Phylogenet. Evol., 112: 148–157, reported on the molecular phylogenetics and biogeography of this species within the Rana dybowskii species complex. 

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