| Scientific Name | TSN | Taxon Author | Common Name | Name Source | Usage | Reason (ITIS) | Taxon Rank |
|---|
| Northia geophiliformis | 181093 | Moore, 1903 | | ITIS | invalid | junior synonym of Nothria geophiliformis | Species |
| Northia iridescens | 181094 | Johnson, 1901 | | ITIS | invalid | junior synonym of Nothria iridescens | Species |
| Nothria abyssalis | 181095 | Fauchald, 1968 | | ITIS | valid | | Species |
| Nothria atlantisa | 66201 | | | ITIS | valid | | Species |
| Nothria britannica | 204456 | (McIntosh, 1903) | | ITIS | valid | | Species |
| Nothria cirrata | 181096 | Hartman, 1944 P | | ITIS | valid | | Species |
| Nothria conchylega | 66190 | Audouin and Milne-Edwards, 1833 | | ITIS | valid | | Species |
| Nothria conchylega occidentalis | 66205 | | | ITIS | invalid | junior synonym of Nothria occidentalis | Subspecies |
| Nothria elegans | 66193 | | | ITIS | valid | | Species |
| Nothria farallonensis | 66194 | | | ITIS | valid | | Species |
| Nothria geophiliformis | 66195 | (Moore, 1903) | | ITIS | valid | | Species |
| Nothria gorgonensis | 66202 | | | ITIS | valid | | Species |
| Nothria guadalupensis | 181097 | Fauchald, 1968 | | ITIS | valid | | Species |
| Nothria hawaiiensis | 66206 | Pettibone, 1970 | | ITIS | valid | | Species |
| Nothria iridescens | 66196 | (Johnson, 1901) | | ITIS | valid | | Species |
| Nothria lepta | 66191 | | | ITIS | valid | | Species |
| Nothria mexicana | 181098 | Fauchald, 1968 | | ITIS | valid | | Species |
| Nothria occidentalis | 66204 | Fauchald, 1968 | | ITIS | valid | | Species |
| Nothria pallida | 66192 | | | ITIS | valid | | Species |
| Nothria pygidialis | 181099 | Fauchald, 1968 | | ITIS | valid | | Species |
| Nothria similis | 181100 | Fauchald, 1968 | | ITIS | valid | | Species |
| Nothria sp | 999018267 | | | SCAMIT | public | mtsn | Species |
| Nothria stigmatis | 66197 | (Treadwell, 1922) | | ITIS | valid | | Species |
| Nothria textor | 66203 | | | ITIS | valid | | Species |
| Onuphis conchylega | 66159 | Audouin and Milne-Edwards, 1833 | | ITIS | invalid | junior synonym of Nothria conchylega | Species |
| Onuphis stigmatis | 66163 | | | ITIS | invalid | junior synonym of Nothria stigmatis | Species |
