| Scientific Name | TSN | Taxon Author | Common Name | Name Source | Usage | Reason (ITIS) | Taxon Rank |
|---|
| Dentalium eboreum | 82175 | Conrad, 1846 | | ITIS | invalid | junior synonym of Graptacme eborea | Species |
| Dentalium semistriolatum | 82177 | Guilding, 1834 | | ITIS | invalid | junior synonym of Graptacme semistriolatum | Species |
| Graptacme calamus | 82178 | (Dall, 1889) | reed tuskshell | ITIS | valid | | Species |
| Graptacme eborea | 82174 | (Conrad, 1846) | ivory tuskshell | ITIS | valid | | Species |
| Graptacme inversa | 82179 | (Deshayes, 1826) | turned tuskshell | ITIS | valid | | Species |
| Graptacme perlonga | 82180 | (Dall, 1881) | slender tuskshell | ITIS | valid | | Species |
| Graptacme semipolita | 82181 | (Broderip and G. B. Sowerby I, 1829) | half-smooth tuskshell | ITIS | valid | | Species |
| Graptacme semistriolata | 567642 | (Guilding, 1834) | scratched tuskshell | ITIS | valid | | Species |
| Graptacme semistriolatum | 82176 | (Guilding, 1834) | scratched tuskshell | ITIS | valid | | Species |
