Rana tagoi Okada, 1928

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

Rana tagoi Okada, 1928, Annot. Zool. Japon., 11: 271. Holotype: TIU 2962, lost according to Maeda and Matsui, 1990, Frogs Toads Japan, Ed. 2: 59. Type locality: "mountain regions of Gifu Prefecture (Kamitakamura, Yoshikigun), at an altitude of 300 feet", Japan. Discussed and considered to be "Kamitakaramura . . . alt. 3000 feet . . . , Yoshikigun, Gifu Prefecture", Japan, by Shibata, 1988, Bull. Osaka Mus. Nat. Hist., 43: 43.

Rana (Rana) tagoi — Nakamura and Ueno, 1963, Japan. Rept. Amph. Color: 38; Yuan, Zhou, Chen, Poyarkov, Chen, Jang-Liaw, Chou, Matzke, Iizuka, Min, Kuzmin, Zhang, Cannatella, Hillis, and Che, 2016, Syst. Biol., 65: 835.

Rana tagoi tagoi — Nakatani and Okada, 1966, Acta Herpetol. Japon., 1: 64–66.

Rana tagoi yakushimensis Nakatani and Okada, 1966, Acta Herpetol. Japon., 1: 64. Type(s): Not stated. Type locality: "River Anbo, Yakushima, Kagoshima Prefecture", Japan.

Rana tagoi okiensis Daito, 1969, Zool. Mag., Tokyo, 78: 406. Holotype: Not designated. Type locality: XXX; given "Oki Islands (probably Dogo Island), Shimane prefecture", Japan, by Shibata, 1988, Bull. Osaka Mus. Nat. Hist., 43: 43–56, and "Dogo I., Oki Is.", Japan, by Maeda and Matsui, 1990, Frogs Toads Japan, Ed. 2: 63.

Rana (Rana) tagoi — Dubois, 1987 "1986", Alytes, 5: 41, by implication.

Rana tagoi tsurumyrougelia —  Shibata, 1988, Bull. Osaka Mus. Nat. Hist., 43: 43, regarded as unavailable. 

Rana (Laurasiarana) tagoi — Hillis 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

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

Tago's Brown Frog (Rana tagoi tagoi: Maeda and Matsui, 1990, Frogs Toads Japan, Ed. 2: 59; Goris and Maeda, 2004, Guide Amph. Rept. Japan: 100).

Oki Tago's Brown Frog (Rana tagoi okiensis: Maeda and Matsui, 1990, Frogs Toads Japan, Ed. 2: 59).

Yakushima Tago's Brown Frog (Rana tagoi okiensis: Maeda and Matsui, 1990, Frogs Toads Japan, Ed. 2: 59).

Oki Brown Frog (Rana tagoi okiensis: Goris and Maeda, 2004, Guide Amph. Rept. Japan: 102).

Yakushima Brown Frog (Rana tagoi yakushimensis: Goris and Maeda, 2004, Guide Amph. Rept. Japan: 103).

Distribution

Mountain regions of Honshu, Shikoku, and Kyushu Is. as well as Togoshima in the Oki Archipelago and Yakushima in the Tanegashima Group, Japan.

Comment

In the Section Rana, subgenus Rana, Rana japonica group of Dubois, 1992, Bull. Mens. Soc. Linn. Lyon, 61: 333. See Nakamura and Ueno, 1963, Japan. Rept. Amph. Color: 38–40. See comment under Rana sakuraii. Tanaka, Matsui, and Takenaka, 1994, Zool. Sci., Tokyo, 11: 753–757, discussed the relationships of this species with Rana ornativentris, Rana pirica, Rana tagoi, and Rana japonica. See Tanaka-Ueno, Matsui, Sato, Takenaka, and Takenaka, 1998, Japan. J. Herpetol., 17: 91–97, for phylogenetic relationships and discussion. Nishioka, Ohta, and Sumida, 1987, Sci. Rep. Lab. Amph. Biol. Hiroshima Univ., 9: 1–52, reported on intraspecific variation of allozymes and large difference between Rana tagoi yakushimensis and Rana tagoi tagoi. Tanaka, Matsui, and Takenaka, 1996, Biochem. Syst. Ecol., 24: 299–307, suggested that Rana tagoi okiensis was more distantly related to other populations assigned to Rana tagoi than was Rana sakuraii. Highton, 2000, in Bruce et al., Biol. Plethodontid Salamanders: 235, suggested that their data supported the recognition of three species. Maeda and Matsui, 1990, Frogs Toads Japan, Ed. 2: 56–67, provided accounts. Goris and Maeda, 2004, Guide Amph. Rept. Japan: 100–105, provided account, maps, and photographs. Ryuzaki, Nishioka, and Kawamura, 2006, Cytogenet. Genome Res., 114: 56–65, reported mutually incompatible karyotypes in this species, a population of n=28 in the Chausu mountain population of Nagano Prefecture, and n=26 elsewhere in Japan, suggesting that the Chausu mountain population should be recognized as a distinct species (DRF). Eto and Matsui, 2014, Mol. Phylogenet. Evol., 79: 231–239, reported on molecular phylogenetics and noted substantial mtDNA introgression with populations of its sister species, Rana sakuraii, which had confounded previous attempts at recovering phylogeny based only on mtDNA trees. They also noted that Rana tagoi is composed of multiple lineages forming a paraphyletic series with respect to Rana sakuraii, for which some available names should be evaluated.

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