Hydromantes platycephalus 

Scope: Global
Language: English

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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Amphibia Caudata Plethodontidae

Scientific Name: Hydromantes platycephalus (Camp, 1916)
Common Name(s):
English Mount Lyell Salamander
Taxonomic Source(s): Frost, D.R. 2014. Amphibian Species of the World: an Online Reference. Version 6.0 (7 July 2014). Electronic Database. American Museum of Natural History, New York, USA. Available at:
Taxonomic Notes: Rovito (2010) indicates that there are two very divergent mtDNA lineages within this species which correspond to the northern and southern parts of the range, with a break between the lineages occurring in the Mammoth Lake region of central Sierra Nevada.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2014
Date Assessed: 2014-08-07
Assessor(s): IUCN SSC Amphibian Specialist Group
Reviewer(s): Luedtke, J.
Contributor(s): Hammerson, G.A.
Facilitator/Compiler(s): Angulo, A.
Listed as Least Concern in view of its relatively wide distribution and presumed large population.
Previously published Red List assessments:

Geographic Range [top]

Range Description:This species can be found in High Sierra Nevada, California, USA, from Sonora Pass, Alpine County, to Franklin Pass area, Tulare County; low elevation records are from the south side of Yosemite Valley (Stebbins 1985). It has an isolated population at Smith Lake, Desolation Wilderness, El Dorado County. Its distribution might be more continuous than present records indicate. It can be found at an elevation of 1,220-3,660 m asl.
Countries occurrence:
United States (California)
Additional data:
Lower elevation limit (metres):1220
Upper elevation limit (metres):3660
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The total adult population size is unknown but it probably exceeds 10,000. It is likely to be stable.
Current Population Trend:Stable
Additional data:
Population severely fragmented:Unknown

Habitat and Ecology [top]

Habitat and Ecology:It can be found among Granite rock exposures, talus and rock fissures, near seepages from streams or melting snow, also in spray zone of waterfalls. Apparently it prefers north-facing slopes. It can also be found under rocks or in caves or crevices during daylight hours. It is a terrestrial breeder.
Systems:Terrestrial; Freshwater

Use and Trade [top]

Use and Trade: There are no reports of this species being utilized.

Threats [top]

Major Threat(s): There are no known present threats, due especially to the remoteness of its habitat.

Conservation Actions [top]

Conservation Actions: Most of its distribution, if not its entirety, is in public land, some of which is protected (e.g. in national parks).

Citation: IUCN SSC Amphibian Specialist Group. 2014. Hydromantes platycephalus. The IUCN Red List of Threatened Species 2014: e.T59286A64258855. . Downloaded on 18 June 2018.
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