| Scientific Name | Author | English Name |
|---|---|---|
| Cochlodesma pyramidatum | (Stimpson, 1860) | |
| Halistrepta sulcata | (Dall, 1904) | Sulcate spoonclam |
| Offadesma angasi | Crosse & Fischer, 1864 | Angag's egg shell |
| Pendaloma micans | (Hedley, 1901) | |
| Periploma affine | Verrill & Bush, 1898 | Related spoonclam |
| Periploma aleuticum | (Krause, 1885) | Aleutian spoonclam |
| Periploma anguliferum | (Philippi, 1847) | Angled spoonclam |
| Periploma compressum | d'Orbigny, 1846 | |
| Periploma coseli | Ardila & Díaz, 1998 | |
| Periploma discus | Stearns, 1890 | Round spoonclam |
| Periploma fragile | (Totten, 1835) | Fragile spoonclam |
| Periploma inaequivalve | Schumacher, 1817 | |
| Periploma indicum | Melvill, 1898 | |
| Periploma leanum | (Conrad, 1831) | Oval spoonclam |
| Periploma margaritaceum | (Lamarck, 1801) | Unequal spoonclam |
| Periploma orbiculare | unspecified | |
| Periploma ovatum | d'Orbigny, 1846 | |
| Periploma papyratium | (Say, 1822) | Paper spoonclam |
| Periploma planiusculum | Sowerby I, 1834 | Flat spoonclam |
| Periploma sanctamarthaense | Ardila & Díaz, 1998 | |
| Periploma tenerum | Fischer, 1882 | Delicate spoonclam |
| Periploma undulatum | Verrill, 1885 | |
| Takashia otoshimeae | (Habe, 1952) | |
| Takashia plane | (Ozaki, 1958) |