Fire belly newts

The fire belly newts or fire newts are a genus (Cynops) of newts native to Japan and China. All of the species show bright yellow or red bellies, but this feature is not unique to this genus. Their skin contains a toxin that can be harmful if ingested.

Fire belly newts
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Urodela
Family: Salamandridae
Subfamily: Pleurodelinae
Genus: Cynops
Tschudi, 1839

Species

Species recognized as of October 2019:[1]

  • Cynops chenggongensis Kou and Xing, 1983 (Chenggong fire belly newt)*
  • Cynops cyanurus Liu, Hu, and Yang, 1962 (Chuxiong fire-bellied newt or blue-tailed fire belly newt)*
  • Cynops ensicauda (Hallowell, 1861) (Japanese sword-tail newt)
  • Cynops fudingensis Wu, Wang, Jiang, and Hanken, 2010 (Fuding fire belly newt)*
  • Cynops glaucus Yuan, Jiang, Ding, Zhang, and Che, 2013
  • Cynops orientalis (David, 1873) (Chinese fire belly newt)*
  • Cynops orphicus Risch, 1983 (Dayang newt or Dayang fire belly newt)*
  • Cynops pyrrhogaster (Boie, 1826) (Japanese fire belly newt)
  • Cynops wolterstorffi (Boulenger, 1905) (Yunnan lake newt)*
  • Cynops yunnanensis Yang, 1983

(A * means that the newt has been moved into the genus Hypselotriton in some classifications [2][3])

Taxonomic controversy

The genus Cynops has been suggested to be due for a split, with the Chinese species being placed in a separate genus from the Japanese ones.[4] The species Cynops cyanurus is at the centre of all this. There is much debate about the validity of C. cyanurus and C. chenggongensis. All the known captive animals could be something different from C. cyanurus, as they do not entirely match the original description of the species. The only known animals that match that are animals originating from Chemnitz Zoo, but the F2 animals have not bred well, which could suggest they are in fact a hybrid of C. cyanurus and C. chenggongensis or an undescribed Cynops species.

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References
  1. Frost, Darrel R. (2019). "Cynops". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History, New York, USA. Retrieved 11 October 2019.
  2. http://www.caudata.org/forum/f1173-advanced-newt-salamander-topics/f30-species-genus-family-discussions/f33-fire-belly-sword-tail-newts-cynops-hypselotriton/80073-cynops-hypselotriton-when-did-happen.html
  3. http://www.caudata.org/forum/f1173-advanced-newt-salamander-topics/f1175-herpetological-science-politics/f1177-taxonomy-phylogenetics-evolution/70862-revision-salamandrid-taxonomy.html
  4. Chan, L. M.; Zamudio, K. R.; Wake, D. B. (2001). "Relationships of the salamandrid genera Paramesotriton, Pachytriton, and Cynops based on mitochondrial DNA sequences" (PDF). Copeia. 2001 (4): 997–1009. doi:10.1643/0045-8511(2001)001[0997:rotsgp]2.0.co;2. JSTOR 1448388.
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