Type species: Nellia oculata Busk, 1852 = Cellaria tenella Lamarck 1816
This genus includes the species:
| Canu, 1919 | Paleogene Oligocene Rupelian | France | WoRMS 1405658 | |
| Hincks 1883 | Recent | Australia | WoRMS 467627 | |
| (Waters, 1882) | Neogene Miocene Langhian | Australia Victoria. | WoRMS 1412314 | |
| Canu & Bassler, 1920 | Paleogene Eocene Priabonian | USA Alabama | WoRMS 1405659 | |
| (Canu, 1907) | Paleogene Eocene Lutetian | France | WoRMS 1412315 | |
| David & Pouyet, 1986 | Recent | South Indian Ocean | WoRMS 471327 | |
| (Reuss, 1869) | Cenozoic | Europe | WoRMS 1412316 | |
| Canu & Bassler, 1920 | Paleogene Paleocene Danian | USA | WoRMS 1405660 | |
| Guha & Gopikrishna, 2005 | Paleogene Eocene Lutetian | India Gujarat | WoRMS 1405661 | |
Now junior synonym of N.tenella |
Busk, 1852 | Recent | South Pacific, Australia | WoRMS 471328 |
| Souaya, 1965 | Neogene Miocene | Egypt | WoRMS 1414944 | |
| Cheetham, 1963 | Paleogene Eocene Priabonian | USA Florida | WoRMS 1405662 | |
| Dartevelle, 1933 | Paleogene Paleocene Danian | Belgium | WoRMS 1405663 | |
| Labracherie, 1970 | Paleogene Eocene | France | WoRMS 1405664 | |
| Voigt, 1962 | Late Cretaceous | Germany | WoRMS 1405665 | |
| Busk, 1852 | Recent | Australia Queensland | WoRMS 467629 | |
| Hu, 1987 | Neogene Pliocene | Taiwan | WoRMS 1405666 | |
| (Lamarck 1816) | Recent Pleistocene Neogene Eocene Late Cretaceous |
Widespread Venezuela Italy Europe. |
WoRMS 422269 | |
| Harmer, 1926 | Recent | Indian Ocean, Pacific, Atlantic | WoRMS 210797 | |
| (Canu, 1914) | Paleogene Eocene Lutetian | France | WoRMS 1412317 | |
| Guha & Gopikrishna, 2005 | Paleogene Oligocene Rupelian-Chattian | India Gujarat | WoRMS 1405667 | |
| Di Martino, Taylor & Portell, 2017 | Neogene Miocene Burdigalian | USA Florida | WoRMS 1405668 |
![]() |
![]() |
![]() |
| Nellia appendiculata | Nellia oculata | Nellia tenella |
Nellia tenella and Nellia at NMITA