| Scientific Name | TSN | Taxon Author | Common Name | Name Source | Usage | Reason (ITIS) | Taxon Rank |
|---|
| Polyschides agassizii | 82253 | (Dall, 1881) | agassiz toothshell | ITIS | valid | | Species |
| Polyschides californicus | 82254 | (Pilsbry and Sharp, 1898) | California toothshell | ITIS | valid | | Species |
| Polyschides carolinensis | 82255 | (Bush, 1885) | Carolina toothshell | ITIS | valid | | Species |
| Polyschides elongatus | 82256 | (J. B. Henderson, 1920) | elongate toothshell | ITIS | valid | | Species |
| Polyschides grandis | 82257 | (A. E. Verrill, 1884) | grand toothshell | ITIS | valid | | Species |
| Polyschides greenlawi | 82258 | (Dall, 1889) | greenlaw toothshell | ITIS | valid | | Species |
| Polyschides miamiensis | 82259 | (J. B. Henderson, 1920) | Miami toothshell | ITIS | valid | | Species |
| Polyschides pandionis | 82260 | (A. E. Verrill and S. Smith, 1880) | kingly toothshell | ITIS | valid | | Species |
| Polyschides parvus | 82261 | (J. B. Henderson, 1920) | little toothshell | ITIS | valid | | Species |
| Polyschides quadridentatus | 82262 | (Dall, 1881) | four-tooth toothshell fourtooth toothshell | ITIS | valid | | Species |
| Polyschides quadrifissatus | 999015206 | (Pilsbry & Sharp 1898) | | SCAMIT | public | mtsn | Species |
| Polyschides rushii | 82263 | (Pilsbry and Sharp, 1898) | rush toothshell | ITIS | valid | | Species |
| Polyschides sp | 999018089 | | | SCAMIT | public | mtsn | Species |
| Polyschides spectabilis | 82264 | (A. E. Verrill, 1885) | notable toothshell | ITIS | valid | | Species |
| Polyschides tetraschistus | 82252 | (Watson, 1879) | | ITIS | valid | | Species |
| Polyschides tetrodon | 82265 | (Pilsbry and Sharp, 1898) | tetrodon toothshell | ITIS | valid | | Species |
| Polyschides tolmiei | 82266 | (Dall, 1897) | tolmie toothshell | ITIS | valid | | Species |
| Polyschides watsoni | 82267 | (Dall, 1881) | watson toothshell | ITIS | valid | | Species |
| Siphonodentalium grandis | 82249 | (A. E. Verrill, 1884) | | ITIS | invalid | subsequent name/combination of Polyschides grandis | Species |
