description Van Dyke's Salamander Overview
Van Dyke's Salamander (Plethodon vandykei) is a lungless salamander in the family Plethodontidae, endemic to Washington state. Named after entomologist Edwin Van Dyke, it inhabits moist rocky habitats near streams and seeps in the Cascade Range and Olympic Mountains. Adults are medium-sized for the genus, typically dark brown with a variable dorsal stripe that may be yellow, reddish, or greenish in coloration. Like other Plethodon species, it lacks lungs entirely and relies on cutaneous respiration, requiring consistently moist microhabitats.
help Van Dyke's Salamander FAQ
Where is Van Dyke's Salamander found?
Plethodon vandykei is endemic to Washington state in the Pacific Northwest, where it occurs in moist rocky habitats in the Cascade Mountains and the Olympic Mountains. It is typically found near streams, seeps, and splash zones in cool, wet forest environments.
Who is Van Dyke's Salamander named after?
The species is named after Edwin Cooper Van Dyke (1869–1952), an American entomologist and professor at the University of California, Berkeley, known for his work on beetles. Several other animal species also bear his name in recognition of his contributions to taxonomy.
Is Van Dyke's Salamander endangered?
Van Dyke's Salamander is considered a species of conservation concern in Washington state due to its restricted range and dependence on cool, moist microhabitats. Climate change and timber harvesting are regarded as the primary threats to its habitat.
How does Plethodon vandykei reproduce without lungs?
As a member of the Plethodontidae family, Van Dyke's Salamander respires through its skin and mouth lining rather than lungs, and it undergoes direct development without a free-living aquatic larval stage. Females lay eggs in moist terrestrial crevices and guard them until they hatch into miniature adults.
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