Type species: Idmonea milneana d'Orbigny, 1842
This genus includes the species:
| Winston, Vieira & Woollacott, 2014 | Recent | Southwest Atlantic Brazil | WoRMS 827637 | |
| Buge, 1979 | Recent | Atlantic Ocean | WoRMS 471249 | |
| (Canu & Bassler, 1929) | Recent | West Pacific - Philippines | WoRMS 471252 | |
| (Pergens & Meunier, 1886) | Cretaceous-Paleocene | Denmark | WoRMS 1412355 | |
| (Osburn, 1940) | Recent | West Atlantic | WoRMS 471250 | |
| (MacGillivray, 1887) | Recent | Australia | WoRMS 1034696 | |
| (MacGillivray, 1886) | Recent | Australia | WoRMS 471247 | |
| Zágoršek, Yazdi, & Bahrami, 2017 | Paleogene Oligocene- Neogene Miocene | Iran | WoRMS 1405754 | |
| (Stach, 1936) | Recent | Australia | WoRMS 1034697 | |
| (d'Orbigny, 1842) (not 1839) | Recent | Atlantic | WoRMS 174162 | |
| Borg, 1944 | Recent | South Atlantic | WoRMS 472764 | |
| (Canu & Bassler, 1929) | Recent | West Pacific - Philippines | WoRMS 471253 | |
| (Haswell, 1880) | Recent | Australia | WoRMS 1027456 | |
| (Kirkpatrick, 1890) | Recent | Northwest Pacific - China | WoRMS 471248 | |
| (Liu in Liu, Yin & Ma, 2001) | Recent | South China Sea | WoRMS 1345836 | |
| (Liu in Liu, Yin & Ma, 2001) | Recent | South China Sea | WoRMS 1345834 | |
| (Osburn, 1940) | Recent | West Atlantic - Caribbean | WoRMS 471251 | |
| Guha & Nathan, 1996 | Cretaceous | India | WoRMS 1405755 | |
| (d'Orbigny, 1850) | Cretaceous | France | WoRMS 1412356 |
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| Nevianipora pulcherrima |