| Species | Name Used |
|---|---|
| Tridacna maxima (Röding, 1798) | Tridacna maxima (p. ) |
| Tridacna squamosa Lamarck, 1819 | Tridacna squamosa (p. ) |
| Troglocambarus maclanei Hobbs, 1942 | Troglocambarus maclanei (p. ) |
| Tumidodromia dormia (Linnaeus, 1763) | Dromia dormia (p. ) |
| Uca tangeri (Eydoux, 1835) | Uca tangeri (p. ) |
| Ucides cordatus (Linnaeus, 1763) | Ucides cordatus (p. ) |
| Ucides occidentalis (Ortmann, 1897) | Ucides occidentalis (p. ) |
| Vampyroteuthis infernalis Chun, 1903 | Vampyroteuthis infernalis (p. ) |
| Varuna litterata (Fabricius, 1798) | Varuna litterata (p. ) |
| Varuna yui Hwang & Takeda, 1984 | Varuna yui (p. ) |
| Velodona togata Chun, 1915 | Velodona togata (p. ) |