 Amygdalum americanum Soot-Ryen, 1955 |  Brachidontes playasensis (Pilsbry & Lowe, 1932) |  Brachidontes puntarenensis (Pilsbry & Lowe, 1932) |
 Brachidontes semilaevis (Menke, 1849) |  Lithophaga aristata (Dillwyn, 1817) |  Lithophaga hastasia Olsson, 1961 |
 Modiolus capax (Conrad, 1837) |  Modiolus eiseni Strong & Hertlein, 1937 |  Modiolus pseudotulipus Olsson, 1961 |
 Mytella charruana (Orbigny, 1842) |  Mytella sinuosa (King, 1831) |  Mytella tumbezensis (Pilsbry & Olsson, 1935) |
 Septifer zeteki Hertlein & Strong, 1846 | | |