Pseudoeurycea aquatica 


Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Caudata Plethodontidae

Scientific Name: Pseudoeurycea aquatica
Species Authority: Wake & Campbell, 2001
Common Name(s):
English Aquatic Salamander
Taxonomic Source(s): Frost, D.R. 2014. Amphibian Species of the World: an Online Reference. Version 6 (27 January 2014). New York, USA. Available at: (Accessed: 27 January 2014).

Assessment Information [top]

Red List Category & Criteria: Critically Endangered (Possibly Extinct) 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.
Date last seen: 1978
Previously published Red List assessments:
2004 Critically Endangered (CR)

Geographic Range [top]

Range Description: This species is known only from Totontepec, at 2,500m asl, in central-eastern Oaxaca, Mexico.
Countries occurrence:
Possibly extinct:
Number of Locations: 1
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.
Current Population Trend: Decreasing
Additional data:
Population severely fragmented: No

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 2008: e.T59369A11923476. . Downloaded on 29 June 2016.
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