 | Anoplostomatidae
| | Anoplostoma viviparum | 1 |
| Anticomidae
| | Anticoma acuminata, Anticoma litoris, Anticomopsis typica, Anticoma arctica | 5 |
| Enchelidiidae
| | Calyptronema setifer, Calyptronema acuminatum, Symplocostomella mediterranea, Pareurystomina acuminata | 9 |
| Enoplidae
| | Enoplus meridionalis, Enoplus communis, Enoplus schulzi, Enoplus littoralis | 4 |
| Ironidae
| | Dolicholaimus marioni, Dolicholaimus benepapillosus, Dolicholaimus nudus, Trissonchulus benepapillosus | 6 |
| Lauratonematidae
| | Lauratonema reductum | 1 |
| Leptosomatidae
| | Thoracostoma coronatum, Leptosomatum sabangense, Thoracostoma steineri, Pseudocella citronicauda | 4 |
| Oncholaimidae
| | Adoncholaimus thalassophygas, Prooncholaimus banyulensis, Oncholaimellus calvadosicus, Viscosia palmae | 18 |
| Oxystominidae
| | Nemanema filiforme, Halalaimus papillifer, Oxystomina elongata, Halalaimus gracilis | 7 |
| Phanodermatidae
| | Phanoderma campbelli, Phanoderma cocksi, Phanoderma etha, Phanoderma ocellatum | 6 |
| Thoracostomopsidae
| | Mesacanthion macrospiculum, Trileptium subterraneum, Mesacanthion diplechma, Enoplolaimus litoralis | 7 |
| Trefusiidae
| | Trefusia filum, Trefusialaimus monorchis, Rhabdocoma americana | 3 |
| Tripyloididae
| | Bathylaimus australis, Tripyloides demani, Parabathylaimus ponticus | 3 |
