Type species: Marguetta pulchra Jullien, 1903
This genus includes the species:
| Canu & Bassler, 1929 | Eocene | Belgium | WoRMS 1404797 | |
| Brown, 1958 | Neogene Miocene | Australia Victoria | WoRMS 1404798 | |
| (Alder, 1864) | Recent | Northeast Atlantic | WoRMS 221524 | |
| Jullien, 1903 | Recent | Northeast Atlantic | WoRMS 111113 |
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| Marguetta pulchra (thanks to Dennis Gordon, NIWA) |
Harmer notebook - entry for Marguetta