Adults occur in quiet water with dense vegetation or other cover over mud and debris; also in cool, brown waters of bogs and swamps.
Physical description for Olympic mudminnow is currently being compiled.
Behavioural data for Olympic mudminnow is currently being reviewed.
Diet information for Olympic mudminnow is currently being compiled.
Reproduction data for Olympic mudminnow is currently being compiled.
Freshwater; demersal; non-migratory . Temperate; 4°C - 25°C ; 48°N - 45°N North America: coastal lowlands of Olympic Peninsula in Washington, USA from Ozette Lake and Queets River drainage to upper Chehalis River drainage; occasionally in lower Deschutes River (Puget Sound drainage), as a result of floodwater exchange with Chehalis River.
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 7 records indexed .
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