The Olympic marmot is one of the Olympic Peninsula's endemic species that resulted from ice age isolation. Ken and Mary Campbell
Endemic species are those that are native and exclusive to a particular area. The following species are endemic to the Olympic Peninsula.
Mammals
Olympic marmot - Marmota olympus
Olympic yellow-pine chipmunk - Tamias amoenus caurinus
Olympic snow mole - Scapanus townsedii olympicus
Olympic Masama pocket gopher - Thomomys mazama melanops
Olympic ermine - Mustela erminea olympica
Amphibians
Olympic torrent salamander - Rhyacotriton olympicus
Fish
Olympic mudminnow - Novumbra hubbsi
Lepidoptera (butterflies and moths)
Hulbirt's skipper - Hesperia comma olympica
Orthoptera (grasshoppers)
Olympic grasshopper - Nisquallia olympica
Coleoptera (beetles)
Mann's gazzelle beetle - Nebria danmanni
Quileute gazelle beetle - Nebri acuta quileute
Tiger beetle - Cicindela bellissima frechini
Mollusks
Arionid slug - Hemphllia dromedarius
Arionid jumping slug - Hemphillia burringtoni
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