Thorius narisovalis
family: Plethodontidae
subfamily: Hemidactyliinae

© 2015 Sean Michael Rovito (1 of 17)
Conservation Status (definitions)
IUCN (Red List) Status Critically Endangered (CR)
Other International Status None
National Status None
Regional Status None

Country distribution from AmphibiaWeb's database: Mexico



View distribution map using BerkeleyMapper.

bookcover Excerpts from Les Urodèles du Monde, 1st and 2nd editions and more recent updates, by Jean Raffaëlli (©2007, ©2014 by Jean Raffaëlli), used with permission. The 2nd edition of this book is available directly from the author: and from this website.

Author: Jean Raffa�lli

Thorius narisovalis Taylor, 1940

Grande esp�ce. 3,1 cm SVL (7,1 cm). Forme robuste, narine de petite taille et arrondie. Pas de dents sur les maxillaires. Bande dorsale brun rouge�tre s��tendant sur la queue, contrastant avec les flancs noir�tres, t�te noire. Parfois, chez certaines femelles, la bande est absente et le dos noir�tre. Parties ventrales gris brun avec quelques taches cr�me. Au nord de la ville d�Oaxaca, dans la r�gion de Cerro San Felipe (Sierra d�Aloapaneca, centre nord de l�Oaxaca), la cha�ne situ�e imm�diatement au sud de la Sierra de Juarez, ainsi qu�au sud de La Tlaxiaco. Entre 2600 et 3 000 m, dans des for�ts mixtes pins/ch�nes et en for�t de brume sous des morceaux d��corces et de bois � terre. 23 km2. CR. Anciennement commune, devenue extr�mement rare. Pr�sente dans le parc national Benito Juarez. Pseudoeurycea smithi et unguidentis sympatriques. A tendance � s��chapper prestement en sautant (Taylor, 1940).


It is a big species. 3.1cm SVL (7.1cm). It is robust-looking. The nostril is small and round. There are no maxillary teeth. There is a reddish brown dorsal stripe continuing on the tail, contrasting with the black flanks. In some females the stripe is absent and the back is black. Head is black. Ventral parts are grey/brown with a few cream spots. Sympatric with Pseudoeurycea smithi and unguidentis. It tends to escape quickly by jumping (Taylor, 1940).

Habitat & Range: North of the city of Oaxaca, in the Cerro San Felipe region (Sierra de Aloapaneca, central north of Oxaca), the mountain range just south of the Sierra de Juarez, as well as south of La Tlaxiaco. It lives between 2600 & 3000m asl in mixed pine/oak forests, and in cloud forests under wood and bark fragments on the ground. 23Km².

Conservation: Critically endangered. Formerly common, it has become extremely rare. It is present in the Benito Juarez national park.

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Citation: AmphibiaWeb. 2019. <> University of California, Berkeley, CA, USA. Accessed 23 May 2019.

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