Hynobius nigrescens Stejneger, 1907

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

Hynobius nigrescens Stejneger, 1907, Bull. U.S. Natl. Mus., 58: 34. Holotype: TIU 57A, lost by implication of statements by Maeda and Matsui, 1990, Frogs Toads Japan, Ed. 2, that collection destroyed in WWII. Type locality: "Sendai, [Rikuzen Province,] Hondo [= Honshu I.], Japan".

Hynobius fuscus Tago, 1907, Zool. Mag., Tokyo, 19: 204, 233. Syntypes: Presumably originally TIU, now lost; by implication of statements by Maeda and Matsui, 1990, Frogs Toads Japan, Ed. 2, that collection destroyed in WWII. Type locality: Mt. Nikko, Tochigi Pref., Shimozuke Province, Honshu I., Japan. Synonymy by Okada, 1937, Saito Ho-on Kwai Mus. Res. Bull., 12: 182; Sato, 1940, Bull. Biogeogr. Soc. Japan, 10: 164. Thorn, 1968, Salamand. Eur. Asie Afr. Nord: 38, suggested that this name also belonged in the synonymy of Hynobius retardatus.

Hynobius sadoensis Sato, 1940, Bull. Biogeogr. Soc. Japan, 10: 163. Syntypes: Possibly ZIHU according to Brame and Gorham, 1972, Checklist Living & Fossil Salamand. World (Unpubl. MS): 15. Type locality: "Sado Island", Japan. Synonymy by Nakamura and Ueno, 1963, Japan. Rept. Amph. Color: 10, and Matsui, Iwasawa, Takahashi, Hayashi, and Kumakura, 1992, J. Herpetol., 26: 308-315.

Hynobius (Hynobius) nigrescensNakamura and Ueno, 1963, Japan. Rept. Amph. Color: 9; Dubois and Raffaëlli, 2012, Alytes, 28: 77-161.

English Names

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

Japanese Black Salamander (Goris and Maeda, 2004, Guide Amph. Rept. Japan: 22).

Distribution

North-central to northern Honshu I. as well as on Sadogashima Island, Japan, 0–2500 m elevation.

Geographic Occurrence

Natural Resident: Japan

Endemic: Japan

Comment

In the Hynobius lichenatus group. Hynobius peropus may be an older name for this species. Raffaëlli, 2013, Urodeles du Monde, 2nd ed.: 68–69, provided a brief account, photo, and map. Yang, Kim, Min, and Suh, 2001, Monogr. Korean Amph.: 444-45, provided an account and map for an unnamed sibling species in southeastern South Korea. Goris and Maeda, 2004, Guide Amph. Rept. Japan: 22-24, provided an account, map, and photograph. Sparreboom, 2014, Salamanders Old World: 81–83, reviewed the biology, characteristics, distribution, reproduction, and conservation of the species. Matsui, Yoshikawa, Aoki, Sasamori, Matsui, Tanabe, Misawa, and Nishikawa, 2020, Zool. Sci., Tokyo, 37: 529–537, reported on molecular phylogeography. Raffaëlli, 2022, Salamanders & Newts of the World: 98–99, provided an account, summarizing systematics, life history, population status, and distribution (including a polygon map). 

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