Antinioche beili (Olsson, 1961) | 
Chione cf. guatulcoensis Hertlein & Strong, 1948 | 
Chione compta (Broderip, 1835) | 
Chione guatulcoensis Hertlein & Strong, 1948 | 
Chione kellettii (Hinds, 1845) | 
Chione montezuma Pilsbry & Lowe, 1932 | 
Chione pulicaria (Broderip, 1835) | 
Chione subimbricata (G. B. Sowerby I, 1835) |
Chionopsis amathusia (R. A. Philippi, 1844) | 
Chionopsis gnidia (Broderip & G. B. Sowerby I, 1829) | 
Cyclinella jadisi Olsson, 1961 | 
Cyclinella producta (Carpenter, 1856) | 
Cyclinella saccata (Gould, 1851) | 
Cyclinella ulloana Hertlein & Strong, 1948 | 
Dosinia dunkeri (R. A. Philippi, 1844) | 
Globivenus isocardia (A. E. Verrill, 1870) |
Globivenus magdalenae (Dall, 1902) | 
Hysteroconcha rosea (Broderip & G. B. Sowerby I, 1829) | 
Iliochione subrugosa (W. Wood, 1828) | 
Lamelliconcha callicomata (Dall, 1902) | 
Lamelliconcha unicolor (G. B. Sowerby I, 1835) | 
Leukoma asperrima (G. B. Sowerby I, 1835) | 
Leukoma cf. grata (Say, 1831) | 
Leukoma columbiensis (G. B. Sowerby I, 1835) |
Leukoma grata (Say, 1831) | 
Leukoma metodon (Pilsbry & H. N. Lowe, 1932) | 
Lirophora mariae (A. d´Orbigny, 1846) | 
Megapitaria aurantiaca (G. B. Sowerby I, 1831) | 
Megapitaria squalida chionacea (Menke, 1847) | 
Periglypta multicostata (Sowerby, 1835) | 
Pitar aequinoctialis (Fisher-Piette, 1969) | 
Pitar alternatus (Broderip, 1835) |
Pitar cf. helenae Olsson, 1961 | 
Pitar cf. mexicanus Hertlein & Strong, 1948 | 
Pitar concinnus (Sowerby, 1835) | 
Pitar consanguineus (C.B.Adams, 1852) | 
Pitar elenensis (Olsson, 1961) | 
Pitar helenae Olsson, 1961 | 
Pitar mexicanus Hertlein & Strong, 1948 | 
Pitar paytensis Orbigny, 1845 |
Pitar perfragilis Pilsby & Lowe, 1932 | 
Pitar pollicaris (Carpenter, 1864) | 
Pitar tortuosus (Broderip, 1835) | 
Pitar vinaceus (Olsson, 1961) | 
Tivela byronensis (Gray, 1838) | 
Tivela hindsii (Hanley, 1844) | 
Tivela planulata (Broderip & G. B. Sowerby I, 1830) | 
Transennella modesta (Sowerby, 1835) |
Transennella puella (Carpenter, 1864) | | | | | | | |
