| Species | Name Used in Reference |
|---|---|
| Cottus beldingii Eigenmann & Eigenmann, 1891 | Cottus beldingii (p. 249) |
| Cottus cognatus Richardson, 1836 | Cottus cognatus (p. 249) |
| Cottus confusus Bailey & Bond, 1963 | Cottus confusus (p. 249) |
| Cottus hubbsi Bailey & Dimick, 1949 | Cottus hubbsi (p. 249) |
| Cottus rhotheus (Smith, 1882) | Cottus rhotheus (p. 249) |
| Cottus schitsuumsh Lemoine, Young, Mckelvey, Eby, Pilgrim & Schwartz, 2014 | Cottus schitsuumsh (p. 244) |