| Species name | Common name | Distribution | Max. Length (cm) |
|---|---|---|---|
| Hamatoscalpellum californicum (Pilsbry, 1907) |
California blade barnacle | Eastern Central Pacific | |
| Hamatoscalpellum columbianum (Pilsbry, 1909) |
Canada | ||
| Hamatoscalpellum rathbunae (Pilsbry, 1907) |
Southwest Atlantic |