| brazil | bahia | bolbosoma | genus | 0 | 1 |
| brazil | ceara | bolbosoma | genus | 0 | 1 |
| brazil | rio de janeiro | bolbosoma turbinella | species | 5 | 0 |
| japan | kagoshima prefecture | bolbosoma | genus | 0 | 1 |
| japan | kyoto prefecture | bolbosoma cf. capitatum bc-1 | species | 1 | 0 |
| new zealand | | bolbosoma balaenae | species | 1 | 0 |
| portugal | acores autonomous region | bolbosoma | genus | 0 | 1 |
| portugal | acores autonomous region | bolbosoma vasculosum | species | 0 | 1 |
| portugal | madeira autonomous region | bolbosoma | genus | 0 | 3 |
| portugal | madeira autonomous region | bolbosoma vasculosum | species | 0 | 3 |
| spain | | bolbosoma balaenae | species | 4 | 0 |
| united states | alaska | bolbosoma | genus | 0 | 2 |
| united states | alaska | bolbosoma nipponicum | species | 0 | 1 |
| united states | california | bolbosoma | genus | 0 | 1 |
| united states | georgia | bolbosoma | genus | 0 | 1 |
| western sahara | | bolbosoma | genus | 0 | 1 |