Northwestern U.S.A. and southwestern Canada: Oregon, Idaho, Washington, British Columbia.

North America: Columbia unglaciated and Oregon Lakes ecoregions.

occurs (regularly, as a native taxon) in multiple nations

Canada

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

Type of Residency: Year-round

Global Range: Harney Basin, Oregon; Snake River basin, including Malheur River, Oregon and Idaho; lower Columbia basin (e.g., upper Willamette River system [but evidently mostly hybrids with C. hubbsi]; Gales Creek and Clatskanie River, Oregon); probably upper Columbia basin in Washington, southern British Columbia, and possibly elsewhere, but further taxonomic study is needed (Markle and Hill 2000).

Due to uncertainties in the distributional details of members of the Cottus bairdii complex, the watershed (HUC) map in NatureServe Explorer depicts the distrbution of the complex, including Cottus bairdii and species now recognized as Cottus bendirei and Cottus hubbsi. The ranges of individual species will be mapped separatey when further information becomes available.

Holotype for Potamocottus bendirei Bean
Catalog Number: USNM 24196
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): C. Bendire
Year Collected: 1878
Locality: Rattlesnake Crk. Near Camp Harney Oregon, Oregon, United States, North America

demersal; freshwater

Habitat Type: Freshwater

Comments: Of the mottled sculpin complex in the northern Harney Basin, "Cottus bendirei was the dominant or only species in isolated streams and upstream tributaries and C. HUBBSI was the dominant or only species in the mainstem Silvies River" (Markle and Hill 2000).

Non-Migrant: Yes. At least some populations of this species do not make significant seasonal migrations. Juvenile dispersal is not considered a migration.

Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).

Locally Migrant: No. No populations of this species make annual migrations of over 200 km.

Canada

Rounded National Status Rank: NNR - Unranked

United States

Rounded National Status Rank: N3 - Vulnerable

Rounded Global Status Rank: G4 - Apparently Secure

Not Evaluated

Comments: Recognized as a distinct species by Markle and Hill (2000), but further study is needed to clarify the taxonomic and geographic scope of this entity.