| Family | Genus | Species |
|---|---|---|
| Caudinidae | 3 | 5 |
| Chiridotidae | 6 | 39 |
| Cucumariidae | 32 | 80 |
| Deimatidae | 3 | 18 |
| Elpidiidae | 8 | 41 |
| Gephyrothuriidae | 1 | 1 |
| Heterothyonidae | 1 | 1 |
| Holothuriidae | 5 | 136 |
| Laetmogonidae | 4 | 21 |
| Molpadiidae | 2 | 9 |
| Myriotrochidae | 1 | 3 |
| Paracucumidae | 2 | 4 |
| Pelagothuriidae | 2 | 3 |
| Phyllophoridae | 14 | 53 |
| Placothuriidae | 1 | 1 |
| Psolidae | 3 | 17 |
| Psychropotidae | 3 | 32 |
| Sclerodactylidae | 8 | 18 |
| Stichopodidae | 8 | 81 |
| Synallactidae | 10 | 67 |
| Synaptidae | 11 | 38 |
| Ypsilothuriidae | 2 | 6 |