Hydromantes platycephalus


Taxonomy [top]

Kingdom Phylum Class Order Family

Scientific Name: Hydromantes platycephalus
Species Authority: (Camp, 1916)
Common Name(s):
English Mount Lyell Salamander

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Assessor(s): Geoffrey Hammerson
Reviewer(s): Global Amphibian Assessment Coordinating Team (Simon Stuart, Janice Chanson, Neil Cox and Bruce Young)
Listed as Least Concern in view of its relatively wide distribution, presumed large population, and because it is unlikely to be declining fast enough to qualify for listing in a more threatened category.

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 1,220-3,660m asl.
United States
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: Total adult population size is unknown but probably exceeds 10,000. It is likely to be stable.
Population Trend: Stable

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 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

Threats [top]

Major Threat(s): No present threats, due especially to remoteness of habitat.

Conservation Actions [top]

Conservation Actions: Entire or most of distribution is public land, some of which is protected (e.g., in national parks).

Citation: Geoffrey Hammerson 2004. Hydromantes platycephalus. The IUCN Red List of Threatened Species. Version 2014.2. <>. Downloaded on 23 October 2014.
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