Thorius narismagnus Shannon and Werler, 1955

San Martin pygmy salamander



Taxonomy & Nomenclature



Conservation Status

Last record: 1980's

Rediscovered: 2012

IUCN RedList status: Critically Endangered



Volcán San Martín & Volcán Santa Marta, both Sierra de Los Tuxtlas, Veracruz (southern), Mexico


Biology & Ecology










Original scientific description:

Shannon, F. A. and Werler, J. E. (1955). Notes on amphibians of the Los Tuxtlas Range of Veracruz, Mexico. Transactions of the Kansas Academy of Science 1955: 360-386.


Other references:

Aguilar-López, José L. et al. (2019). Thorius narismagnus (Amphibia: Plethodontidae): rediscovery at the type locality and detection of a new population. Amphibian & Reptile Conservation 13(2) [General Section]: 126–132 (e193).

Gabriela Parra-Olea, David Wake, Mario García-París, James Hanken. (2008). Thorius narismagnus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. ( Downloaded on 17 February 2013.


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