| Species | Name Used |
|---|---|
| Crassicardia crassidens (Broderip & Sowerby I, 1829) | Cyclocardia crassidens (p. 378 ) |
| Crassicardia crebricostata (Krause, 1885) | Cyclocardia crebricostata (p. 378 ) |
| Cyclocardia bailyi (Burch, 1944) | Cyclocardia bailyi (p. 376 ) |
| Cyclocardia barbarensis (Stearns, 1891) | Cyclocardia barbarensis (p. 377 ) |
| Cyclocardia gouldii (Dall, 1903) | Cyclocardia gouldii (p. 379 ) |
| Cyclocardia incisa (Dall, 1903) | Cyclocardia incisa (p. 379 ) |
| Glans subquadrata (Carpenter, 1864) | Glans subquadrata (p. 383 ) |
| Milneria kelseyi Dall, 1916 | Milneria kelseyi (p. 384 ) |
| Milneria minima (Dall, 1871) | Milneria minima (p. 384 ) |
| Miodontiscus prolongatus (Carpenter, 1864) | Miodontiscus prolongatus (p. 384 ) |