Scalpellidae Pilsbry, 1907
Hamatoscalpellum californicum (Pilsbry, 1907)
Hamatoscalpellum columbianum (Pilsbry, 1909)
Hamatoscalpellum hamatum (G.O. Sars, 1879)
Hamatoscalpellum rathbunae (Pilsbry, 1907)
Hamatoscalpellum vegae (Nilsson-Cantell, 1925)
