Achterium Van Beneden, 1876 † accepted as Alachtherium Du Bus, 1867 † (original description)
Callophoca Van Beneden, 1876 † (original description)
Gryphoca Van Beneden, 1876 † (original description)
Mesotaria Van Beneden, 1876 † (original description)
Orcopsis Beneden, 1876 (original description)
Phocanella Van Beneden, 1876 † (original description)
Platyphoca Van Beneden, 1876 † (original description)
Platyrhynchus van Beneden, 1876 (original description)
Prophoca Van Beneden, 1876 † (original description)