Chiropterotriton dimidiatus
family: Plethodontidae
subfamily: Hemidactyliinae

© 2017 Sean Michael Rovito (1 of 11)
Conservation Status (definitions)
IUCN (Red List) Status Endangered (EN)
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 from a small area of southern Hidalgo, Mexico, between 2,500-2,700 m asl. It occurs in one threat-defined location and its extent of occurrence (EOO) is 226 km2 and its area of occupancy (AOO) is 225 km2.

Habitat and Ecology

It inhabits only pristine pine-oak and fir forests, where it is found under bark or logs. It breeds by direct development and is not dependent upon water.


This species was previously abundant, but its numbers are now severely reduced and the population is decreasing.

Population Trend


Major Threats

Most of the forest where this species occurs has been severely transformed due to smallholder farmers, slash and burn agricultural methods, logging, urbanization and tourism. This species population decline is hard to explain by habitat loss alone (Parra-Olea et al. 1999) and it has even disappeared from areas where the habitat has only been slightly degraded. It is possible that disease, climate change and/or some other factor has adversely affected this species (J. Lamoreux pers. comm. March 2016).

Conservation Actions

Conservation Actions
It occurs in El Chico National Park and is protected by Mexican law under the "Special Protection" category (Pr).

Conservation Needed
Improved management of this area is urgently needed to reduce the heavy impacts of tourism (such as increased fires and the cutting of forest for recreational facilities).

Red List Status

Endangered (EN)


Listed as Endangered because its extent of occurrence (EOO) is 226 km2, its area of occupancy (AOO) is 225 km2, all individuals are in one threat-defined location, and there is continuing decline in the extent and quality of its habitat and the number of mature individuals in Hidalgo, Mexico.


IUCN SSC Amphibian Specialist Group 2016. Chiropterotriton dimidiatus. The IUCN Red List of Threatened Species 2016: e.T59225A53978281. .Downloaded on 23 February 2019


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