Periplomatidae

Pholadomyoida ordeneko bibalbo familia bat da.

Banaketa 
 Halistrepta Dall, 1904
 Halistrepta sulcata (Dall, 1904)
 Offadesma Dall, 1904
 Offadesma angasi (Crosse & Fischer, 1864)
 Periploma Schumacher, 1817
 Periploma abyssorum
 Periploma affine A. E. Verrill and Bush, 1898
 Periploma alaskanum Williams, 1940
 Periploma aleuticum (Krause, 1885) - Aleutian spoonclam
 Periploma anguliferum (Philippi, 1847)
 Periploma discus Stearns, 1890
 Periploma fragile (Totten, 1835)
 Periploma leanum (Conrad, 1831)
 Periploma margaritaceum (Lamarck, 1801)
 Periploma orbiculare
 Periploma papyratium (Say, 1822)
 Periploma planiusculum G. B. Sowerby I, 1834
 Periploma tenerum P. Fischer, 1882

Kanpo estekak 

Bivalvia