Hynobius okiensis Sato, 1940

Class: Amphibia > Order: Caudata > Family: Hynobiidae > Subfamily: Hynobiinae > Genus: Hynobius > Species: Hynobius okiensis

Hynobius okiensis Sato, 1940, Zool. Mag., Tokyo, 52: 307. Syntypes: ZIHU, apparently destroyed in W.W.II. Type locality: Dogo, Oki Island, Japan.

Hynobius (Hynobius) naevius okiensisNakamura and Ueno, 1963, Japan. Rept. Amph. Color: 12.

Hynobius okiensisThorn, 1968, Salamand. Eur. Asie Afr. Nord: 62. Thorn and Raffaëlli, 2000, Salamand. Ancien Monde: 79.

Hynobius (Hynobius) okiensisDubois and Raffaëlli, 2012, Alytes, 28: 77-161.

English Names

Noboribetsu Salamander (Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 28).

Oki Salamander (Goris and Maeda, 2004, Guide Amph. Rept. Japan: 24).


Known only from Togo (or Dogo) Island in the Oki Archipelago, Japan.


In the Hynobius naevius group. See accounts by Thorn and Raffaëlli, 2000, Salamand. Ancien Monde: 79, and Raffaëlli, 2007, Les Urodèles du Monde: 52-53. Goris and Maeda, 2004, Guide Amph. Rept. Japan: 24-26, provided an account, map, and photograph. Matsui, Nishikawa, Misawa, and Tanabe, 2007, Zool. Sci., Tokyo, 24: 747-751, reported on the systematic relationships of this species and suggested that it is related to Hynbius nebulosus. See photograph, map, description of geographic range and habitat, and conservation status in Stuart, Hoffmann, Chanson, Cox, Berridge, Ramani, and Young, 2008, Threatened Amph. World: 551. Raffaëlli, 2013, Urodeles du Monde, 2nd ed.: 67, provided a brief account, photo, and map. Sparreboom, 2014, Salamanders Old World: 83–84, reviewed the biology, characteristics, distribution, reproduction, and conservation of the species. 

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