 | Clavelinidae
| | Clavelina lepadiformis, Clavelina nana, Pycnoclavella atlantica, Clavelina dellavallei | 11 |
 | Diazonidae
| | Diazona violacea, Rhopalaea neapolitana, Rhopalaea hartmeyeri, Pseudodiazona abyssa | 5 |
 | Didemnidae
| | Diplosoma spongiforme, Didemnum maculosum, Lissoclinum perforatum, Didemnum vexillum | 28 |
 | Holozoidae
| | Archidistoma aggregatum, Distaplia bermudensis, Distaplia magnilarva, Distaplia lubrica | 5 |
 | Polycitoridae
| | Eudistoma posidonarum, Eudistoma costai, Polycitor adriaticus, Cystodytes dellechiajei | 15 |
 | Polyclinidae
| | Aplidium proliferum, Aplidium punctum, Morchellium argus, Aplidium ocellatum | 45 |
 | Pseudodistomidae
| | Pseudodistoma crucigaster, Pseudodistoma cyrnusense, Pseudodistoma obscurum, Pseudodistoma cereum | 5 |