| Species | Name Used |
|---|---|
| Tamaria obstipa Ziesenhenne, 1942 | Tamaria obstipa (p. S.36.2 ) |
| Toxopneustes roseus (Agassiz, 1863) | Toxopneustes roseus (p. SPL 36.2 ) |
| Triplodia abdita (Clark, 1970) | Triodia abdita (p. S.36.2 ) |
| Tripneustes depressus Agassiz, 1863 | Tripneustes depressus (p. SPL 36.2 ) |
| Tripneustes ventricosus (Lamarck, 1816) | Tripneustes ventricosus (p. S.36.1 ) |
| Tromikosoma hispidum (Agassiz, 1898) | Tromikosoma hispidum (p. S.36.2 ) |