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Clawed salamander

The genus Onychodactylus, commonly known as clawed salamanders, is a genus of salamanders endemic to eastern Asia. Prior to 2012, it was thought to contain only two species: O. fischeri in the Korean peninsula & Russian Far East, and O. japonicus in Japan, on the islands of Shikoku and Honshū. Later taxonomic revisions have led to many new, microendemic species to be described in the genus. All species are lungless with moderately developed parotoid glands. They inhabit moist, forested mountains near small rivers, streams, and lakes. Adults of each species can reach a length of 19 cm.

Last revised
Jun 28, 2026
Read time
≈ 1 min
Length
298 w
Citations
2
Source
Clawed salamanders
Onychodactylus fischeri
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Urodela
Family: Hynobiidae
Subfamily: Onychodactylinae
Dubois and Raffaëlli, 2012
Genus: Onychodactylus
Tscudi, 1838
Species

See table

The genus Onychodactylus, commonly known as clawed salamanders, is a genus of salamanders endemic to eastern Asia. Prior to 2012, it was thought to contain only two species: O. fischeri in the Korean peninsula & Russian Far East, and O. japonicus in Japan, on the islands of Shikoku and Honshū. Later taxonomic revisions have led to many new, microendemic species to be described in the genus.1 All species are lungless with moderately developed parotoid glands. They inhabit moist, forested mountains near small rivers, streams, and lakes. Adults of each species can reach a length of 19 cm.

Species

Species recognized as of October 2023:2

References

References

  1. Nikolay A. Poyarkov, Jr.; Jing Che; Mi-Sook Min; Masaki Kuro-o; Fang Yan; Cheng Li; Koji Iizuka; David R. Vieites (2012). "Review of the systematics, morphology and distribution of Asian Clawed Salamanders, genus Onychodactylus (Amphibia, Caudata: Hynobiidae), with the description of four new species". Zootaxa. 3465 (1): 1–106. doi:10.11646/zootaxa.3465.1.1.
  2. Frost, Darrel R. (2019). "Onychodactylus". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History, New York, USA. Retrieved 8 October 2019.
External links
  • AmphibiaWeb: Information on amphibian declines, conservation, natural history, and taxonomy. [web application]. 2010. Berkeley, California: Onychodactylus. AmphibiaWeb, available at http://amphibiaweb.org/. (Accessed: November 20, 2010).