24 Species in Family Periplomatidae
Nominal species list for Periplomatidae
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)
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