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| No. | Valid Name | Author | English Name |
| 1. | Cottunculus granulosus | Karrer, 1968 | Fathead |
| 2. | Cottunculus microps | Collett, 1875 | Polar sculpin |
| 3. | Cottunculus nudus | Nelson, 1989 | Bonyskull toadfish |
| 4. | Cottunculus spinosus | Gilchrist, 1906 | |
| 5. | Cottunculus thomsonii | (Günther, 1882) | Pallid sculpin |
| 6. | Cottunculus tubulosus | Byrkjedal & Orlov, 2007 |