Alvarez del Toro's hidden salamander

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Cryptotriton alvarezdeltoroi
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Urodela
Family: Plethodontidae
Genus: Cryptotriton
Species: C. alvarezdeltoroi
Binomial name
Cryptotriton alvarezdeltoroi
(Papenfuss & Wake, 1987)

Nototriton alvarezdeltoroi Papenfuss and Wake, 1987[2]

Álvarez del Toro's hidden salamander or Álvarez del Toro's salamander (Cryptotriton alvarezdeltoroi) is a species of salamander in the family Plethodontidae. It is endemic to Mexico where it is known from its type locality near Jitotol as well as a nearby site on the Mexican Plateau in the Chiapas state.[3]


The specific name, alvarezdeltoroi, is in honor of Mexican herpetologist Miguel Álvarez del Toro.[2]


The holotype of Thorius adelos (an adult male) measure 26.6 mm (1.05 in) in snout–vent length and has a 32.1 mm (1.26 in) long tail. The dorsum and tail are a reddish brown with an irregular, obscure dorsal stripe. The limbs are orange. The snout is blunt with forward-pointing nostrils.[2]


Its natural habitat is very moist cloud forest at elevations of 1,200–1,550 m (3,940–5,090 ft) asl. It has also been found at roadsides.[1]

Conservation status[edit]

This rare species is only known from very few specimens. It is threatened by habitat loss caused by expanding agriculture and human settlements as well as logging.[1]


  1. ^ a b c Parra-Olea, G.; Wake, D.; Hanken, J. (2008). "Cryptotriton alvarezdeltoroi". The IUCN Red List of Threatened Species. IUCN. 2008: e.T59234A11904228. doi:10.2305/IUCN.UK.2008.RLTS.T59234A11904228.en. Retrieved 19 December 2017. 
  2. ^ a b c Papenfuss, T. J. & Wake, D. B. (1987). "Two new species of plethodontid salamanders (genus Nototriton) from Mexico" (PDF). Acta Zoologica Mexicana, Nuevo Serie. 21: 1–16. 
  3. ^ Frost, Darrel R. (2014). "Cryptotriton alvarezdeltoroi (Papenfuss and Wake, 1987)". Amphibian Species of the World: an Online Reference. Version 6.0. American Museum of Natural History. Retrieved 19 November 2014.