Thraciidae Stoliczka, 1870
Cochlodesma affine (Verrill & Bush, 1898)
Cochlodesma emmonsii
Cochlodesma leanum (Conrad, 1831)
Cochlodesma pacifica (Okutani, 1962)
Cochlodesma praetenue (Pulteney, 1799)
Cochlodesma tenerum (Jeffreys, 1880)
Cochlodesma undulatum (Verrill, 1885)