n = 28
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Cyclopterus bimaculatus | Bonnaterre, 1788 | Diplecogaster bimaculata | Gobiesocidae | Two-spotted clingfish |
| Cyclopterus bispinosus | Shaw, 1804 | Arcos nudus | Gobiesocidae | Padded clingfish |
| Cyclopterus caeruleus | Mitchill, 1815 | Cyclopterus lumpus | Cyclopteridae | Lumpfish |
| Cyclopterus callyodon | Pallas, 1814 | Liparis callyodon | Liparidae | Spotted snailfish |
| Cyclopterus cornubicus | Shaw, 1804 | Lepadogaster purpurea | Gobiesocidae | Cornish sucker |
| Cyclopterus coronatus | Couch, 1838 | Cyclopterus lumpus | Cyclopteridae | Lumpfish |
| Cyclopterus dentex | Pallas, 1769 | Chorisochismus dentex | Gobiesocidae | Rocksucker |
| Cyclopterus gobius | Nilsson, 1832 | Liparis montagui | Liparidae | Montagus seasnail |
| Cyclopterus lepadogaster | Bonnaterre, 1788 | Lepadogaster lepadogaster | Gobiesocidae | Shore clingfish |
| Cyclopterus lepodogaster | Bonnaterre, 1788 | Lepadogaster lepadogaster | Gobiesocidae | Shore clingfish |
| Cyclopterus lineatus | Lepechin, 1774 | Liparis liparis | Liparidae | Striped seasnail |
| Cyclopterus liparis | Linnaeus, 1766 | Liparis liparis | Liparidae | Striped seasnail |
| Cyclopterus liparoides | Nilsson, 1832 | Liparis liparis | Liparidae | Striped seasnail |
| Cyclopterus littoreus | Forster, 1801 | Haplocylix littoreus | Gobiesocidae | Giant clingfish |
| Cyclopterus lumpus | Linnaeus, 1758 | Cyclopterus lumpus | Cyclopteridae | Lumpfish |
| Cyclopterus lumpus hudsonius | Cox, 1920 | Cyclopterus lumpus | Cyclopteridae | Lumpfish |
| Cyclopterus minutus | Pallas, 1769 | Cyclopterus lumpus | Cyclopteridae | Lumpfish |
| Cyclopterus montagui | Donovan, 1804 | Liparis montagui | Liparidae | Montagus seasnail |
| Cyclopterus nudus | Linnaeus, 1758 | Arcos nudus | Gobiesocidae | Padded clingfish |
| Cyclopterus ocellatus | Donovan, 1806 | Lepadogaster purpurea | Gobiesocidae | Cornish sucker |
| Cyclopterus orbis | Günther, 1861 | Eumicrotremus orbis | Cyclopteridae | Pacific spiny lumpsucker |
| Cyclopterus pavoninus | Shaw, 1797 | Cyclopterus lumpus | Cyclopteridae | Lumpfish |
| Cyclopterus purpureus | Bonnaterre, 1788 | Lepadogaster purpurea | Gobiesocidae | Cornish sucker |
| Cyclopterus pyramidatus | Shaw, 1804 | Cyclopterus lumpus | Cyclopteridae | Lumpfish |
| Cyclopterus spatula | Cloquet, 1818 | Lepadogaster purpurea | Gobiesocidae | Cornish sucker |
| Cyclopterus spinosus | Fabricius, 1776 | Eumicrotremus spinosus | Cyclopteridae | Atlantic spiny lumpsucker |
| Cyclopterus stelleri | Pallas, 1814 | Aptocyclus ventricosus | Cyclopteridae | Smooth lumpsucker |
| Cyclopterus ventricosus | Pallas, 1769 | Aptocyclus ventricosus | Cyclopteridae | Smooth lumpsucker |