Chiropterotriton chondrostega (Taylor, 1941)

Class: Amphibia > Order: Caudata > Family: Plethodontidae > Subfamily: Hemidactyliinae > Genus: Chiropterotriton > Species: Chiropterotriton chondrostega

Bolitoglossa chondrostega Taylor, 1941, Univ. Kansas Sci. Bull., 27: 113. Holotype: EHT-HMS 17304, by original designation; now FMNH 100076 according to Marx, 1976, Fieldiana, Zool., 69: 36. Type locality: "Durango, Hidalgo, 5,000 to 6,000 feet elevation", Mexico.

Chiropterotriton chondrostegaTaylor, 1944, Univ. Kansas Sci. Bull., 30: 216. Darda, 1994, Herpetologica, 50: 167-184.

Chiropterotriton chondrostega chondrostegaRabb, 1958, Occas. Pap. Mus. Zool. Univ. Michigan, 587: 23.

English Names

Gristle-headed Splayfoot Salamander (Liner, 1994, Herpetol. Circ., 23: 11; Frank and Ramus, 1995, Compl. Guide Scient. Common Names Amph. Rept. World: 30).

Gristle-headed Salamander (Liner and Casas-Andreu, 2008, Herpetol. Circ., 38: 30).

Durango Dwarf Splayfoot Salamander (Raffaëlli, 2022, Salamanders & Newts of the World: 798).


Northwestern Hidalgo and adjacent eastern Queretaro, Mexico, in cloud forest, 1500–2471 m elevation; also reported in the state of México in the municipality of Santiago Tianguistengo.

Geographic Occurrence

Natural Resident: Mexico

Endemic: Mexico


See brief account by Rabb, 1958, Occas. Pap. Mus. Zool. Univ. Michigan, 587: 23-28. Raffaëlli, 2013, Urodeles du Monde, 2nd ed.: 290, provided a brief account, photograph, and map. 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: 567. López-Garduño and Rodríguez-Romera, 2012, Herpetol. Rev., 43: 297, provided a range extension to the state of Mexico. Campbell, Streicher, Cox, and Brodie, 2014, S. Am. J. Herpetol.: 231, provided a useful table of updated comparative morphology of the species. Lemos-Espinal and Dixon, 2016, Amph. Rept. Hidalgo: 333, provided a brief account and map for Hidalgo, Mexico. Raffaëlli, 2022, Salamanders & Newts of the World: 798, provided an account summarizing systematics, life history, population status, and distribution (including a polygon map). Tighe, 2022, Smithson. Contrib. Zool., 654: 20, noted the present location of paratypes. Tepos-Ramírez, Garduño-Fonseca, Peralta-Robles, García-Rubio, and Cervantes Jiménez, 2023, Check List, 19: 269–292, discussed the distribution and conservation status of the species in Queretaro, Mexico. 

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