| Species | Name Used |
|---|---|
| Stegophiura nodosa unspecified | Stegophiura nodosa (p. ) |
| Stenosemus albus (Linnaeus, 1767) | Ischnochiton albus (p. ) |
| Strongylocentrotus droebachiensis (Müller, 1776) | Strongylocentrotus droebachiensis (p. ) |
| Styela rustica (Linnaeus, 1767) | Styela rustica (p. ) |
| Terebellides stroemii Sars, 1835 | Terebellides stroemi (p. ) |
| Themisto abyssorum (Boeck, 1870) | Themisto abyssorum (p. ) |
| Thyonidium pellucidum (Fleming) | Thyonidium pellucidum (p. ) |
| Tonicella marmorea (Fabricius, 1780) | Tonicella marmorea (p. ) |
| Travisia forbesii Johnston, 1840 | Travisia forbesi (p. ) |
| Urasterias lincki (Müller & Troschel, 1842) | Urasterias lincki (p. ) |
| Verruca stroemia (Müller, 1776) | Verruca stroemia (p. ) |
| Westwoodilla megalops unspecified | Westwoodilla megalops (p. ) |
| Zelentia pustulata (Alder & Hancock, 1854) | Cuthona pustulata (p. ) |