Type species: Nellia oculata Busk, 1852 = Cellaria tenella Lamarck 1816
This genus includes the species:
| Nellia appendiculata | Hincks 1883 | Recent | Australia |
| Nellia clavula | Hayward 1978 | Recent | North Atlantic |
| Nellia oculata | Busk, 1852 | Recent | South Pacific, Australia |
| Nellia tenella | (Lamarck 1816) | Recent Pleistocene Neogene Eocene Late Cretaceous |
Venezuela Italy Europe. |
| Nellia tenuis | Harmer, 1926 | Recent | Indian Ocean, Pacific, Atlantic |
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| Nellia appendiculata | Nellia oculata |
Nellia tenella and Nellia at NMITA