Cottus gulosus (Girard, 1854)
Riffle sculpin

Family:  Cottidae (Sculpins)
Max. size:  11 cm TL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  North America: Pacific Slope drainages from lower Columbia River drainage in Washington to Morro Bay in California (including Sacramento-San Joaquin River drainage except upper Pit River), USA; absent in Rogue and Klamath River drainages in southern Oregon and northern California.
Diagnosis:   
Biology:  Inhabits sand and gravel riffles of headwaters and creeks; also in sand-gravel runs and backwaters of small to large rivers (Ref. 5723).
IUCN Red List Status: Least Concern (LC); Date assessed: 09 November 2011 Ref. (130435)
Threat to humans:  harmless


Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.