Isthmura maxima
Southern Giant Salamander, Salamandra Gigante de Putla
Subgenus: Isthmura
family: Plethodontidae
subfamily: Hemidactyliinae
Species Description: Parra-Olea G, Garcia-Paris M, Papenfuss TJ, Wake DB 2005 Systematics of the Pseudoeurycea bellii (Caudata: Plethodontidae) species complex. Herpetologica 61:145-158

© 2018 Rafael Alejandro Calzada-Arciniega (1 of 6)
Conservation Status (definitions)
IUCN (Red List) Status Data Deficient (DD)
Other International Status None
National Status None
Regional Status None

Country distribution from AmphibiaWeb's database: Mexico


View distribution map using BerkeleyMapper.


From the IUCN Red List Species Account:


Range Description

This species is known only from an area at around 750-1,030m asl just north and south of Putla de Guerrero in Oaxaca, Mexico. It is likely to be more widespread.

Habitat and Ecology

Individuals have been found in a banana field and a roadside bank, suggesting some degree of tolerance to habitat disturbance. The species is the largest tropical salamander and appears to live in permanent burrows (T. Papenfuss and D. Wake, pers. comm. 2007). Its minimum viable population size may require a larger area of occupancy. This species reproduces by direct development (D. Wake, pers. comm. 2007).


There is no information available on the population status of this species. It is known only from a few specimens found on several different collection trips to the region.

Population Trend


Major Threats

Urbanization and changed agricultural practice away from shade grown coffee or increased tilling.

Conservation Actions

This species is not known from any protected areas.

Red List Status

Data Deficient (DD)


David Wake, Ted Papenfuss, James Hanken 2008. Pseudoeurycea maxima. In: IUCN 2014


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