Pseudoeurycea aquatica


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Pseudoeurycea aquatica
Species Authority: Wake & Campbell, 2001
Common Name(s):
English Aquatic Salamander

Assessment Information [top]

Red List Category & Criteria: Critically Endangered B1ab(iii)+2ab(iii) ver 3.1
Year Published: 2008
Date Assessed: 2008-01-01
Assessor(s): Gabriela Parra-Olea, David Wake
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)
Listed as Critically Endangered because its Extent of Occurrence is less than 100 km2 and its Area Of Occupancy is less than 10 km2, all individuals are known from a single location, and there is continuing decline in the extent and quality of its habitat around Totontepec, Mexico. This species is possibly extinct.
2004 Critically Endangered

Geographic Range [top]

Range Description: This species is known only from Totontepec, at 2,500m asl, in central-eastern Oaxaca, Mexico.
Possibly extinct:
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: It is known from only three specimens collected in 1978. There have been many subsequent, unsuccessful searches for it, and it is likely to be extinct.
Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: This is the only known aquatic plethodontid salamander in Mesoamerica, occurring in streams in cloud forest. It presumably reproduces by direct development.
Systems: Terrestrial; Freshwater

Threats [top]

Major Threat(s): The cloud forest habitat of this species has been completely destroyed at the type locality due to wood extraction, farming, and human settlement. The resulting degradation of streams due to burned debris has probably also contributed to the species' disappearance.

Conservation Actions [top]

Conservation Actions: It is not known from any protected areas. Further survey work is needed to establish whether or not this species might survive in the wild outside its only known locality.

Citation: Gabriela Parra-Olea, David Wake 2008. Pseudoeurycea aquatica. The IUCN Red List of Threatened Species. Version 2015.2. <>. Downloaded on 02 September 2015.
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