Periplomatidae Pholadomyoida ordeneko bibalbo familia bat da.
- Halistrepta Dall, 1904
- Offadesma Dall, 1904
- 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