Antinioche beili (Olsson, 1961) | 
Chione amathusia (Philippi, 1844) | 
Chione cf. subimbricata (Sowerby, 1835) |
Chione gnidia (Broderip & Sowerby, 1829) | 
Chione jamaniana (Pilsbry & Olsson, 1941) | 
Chione kellettii (Hinds, 1845) |
Chione ornatissima (Broderip, 1835) | 
Chione pulicaria (Broderip, 1835) | 
Chione purpurissata Dall, 1902 |
Chione subimbricata (Sowerby, 1835) | 
Chione undatella (G. B. Sowerby I, 1835) | 
Cyclinella subquadrata (Hanley, 1845) |
Cyclinella ulloana Hertlein & Strong, 1948 | 
Dosinia dunkeri (R. A. Philippi, 1844) | 
Dosinia ponderosa (Gray, 1838) |
Globivenus isocardia (A. E. Verrill, 1870) | 
Gouldia californica Dall, 1917 | 
Hysteroconcha lupanaria (Lesson, 1831) |
Hysteroconcha multispinosa (G. B. Sowerby II, 1851) | 
Hysteroconcha rosea (Broderip & G. B. Sowerby I, 1829) | 
Iliochione subrugosa (W. Wood, 1828) |
Irus ellipticus (Sowerby, 1834) | 
Lamelliconcha unicolor (G. B. Sowerby I, 1835) | 
Leukoma asperrima (G. B. Sowerby I, 1835) |
Leukoma columbiensis (G. B. Sowerby I, 1835) | 
Leukoma histrionica (G. B. Sowerby I, 1835) | 
Leukoma metodon (Pilsbry & H. N. Lowe, 1932) |
Lirophora mariae (A. d�Orbigny, 1846) | 
Megapitaria aurantiaca (G. B. Sowerby I, 1831) | 
Megapitaria sp. 117242 |
Megapitaria squalida (Sowerby, 1835) | 
Megapitaria squalida biradiata (Gray, 1838) | 
Megapitaria squalida chionacea (Menke, 1847) |
Periglypta multicostata (Sowerby, 1835) | 
Pitar alternatus (Broderip, 1835) | 
Pitar callicomatus (Dall, 1902) |
Pitar concinnus (Sowerby, 1835) | 
Pitar fluctuatus (Sowerby, 1851) | 
Pitar helenae Olsson, 1961 |
Pitar mexicanus Hertlein & Strong, 1948 | 
Pitar paytensis Orbigny, 1845 | 
Pitar pollicaris (Carpenter, 1864) |
Pitar tortuosus (Broderip, 1835) | 
Pitar vinaceus (Olsson, 1961) | 
Tivela hindsii (Hanley, 1844) |
Tivela planulata (Broderip & G. B. Sowerby I, 1830) | 
Tivela sp. 37198 | 
Transennella cf. omissa (Pilsbry & Lowe, 1932) |
Transennella cf. puella (Carpenter, 1864) | | |
