| Species | Name Used |
|---|---|
| Ruditapes decussatus (Linnaeus, 1758) | Ruditapes decussatus (p. 164 ) |
| Sabella spallanzanii (Viviani, 1805) | Sabella spallanzanii (p. 163 ) |
| Sphaeroma serratum (Fabricius, 1787) | Sphaeroma serratum (p. 615 ) |
| Tanais dulongii (Audouin, 1826) | Tanais dulongi (p. 165 ) |
| Tesseropora atlantica Newman & Ross, 1976 | Tesseropora atlantica (p. 165 ) |
| Truncatella subcylindrica Linnaeus, 1758 | Truncatella subcylindrica (p. 164 ) |
| Tubularia indivisa Linnaeus, 1758 | Tubularia indivisa (p. 163 ) |