n = 10
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Oligocottus acuticeps | Gilbert, 1896 | Clinocottus acuticeps | Cottidae | Sharpnose sculpin |
| Oligocottus analis | Girard, 1858 | Clinocottus analis | Cottidae | Woolly sculpin |
| Oligocottus embryum | Jordan & Starks, 1895 | Clinocottus embryum | Cottidae | Calico sculpin |
| Oligocottus globiceps | Girard, 1858 | Clinocottus globiceps | Cottidae | Mosshead sculpin |
| Oligocottus latifrons | (Gilbert & Thompson, 1905) | Oligocottus rimensis | Cottidae | Saddleback sculpin |
| Oligocottus maculosus | Girard, 1856 | Oligocottus maculosus | Cottidae | Tidepool sculpin |
| Oligocottus rimensis | (Greeley, 1899) | Oligocottus rimensis | Cottidae | Saddleback sculpin |
| Oligocottus rubellio | (Greeley, 1899) | Oligocottus rubellio | Cottidae | Rosy sculpin |
| Oligocottus snyderi | Greeley, 1898 | Oligocottus snyderi | Cottidae | Fluffy sculpin |
| Oligocottus snydery | Greeley, 1898 | Oligocottus snyderi | Cottidae | Fluffy sculpin |