Class Mammalia Linnaeus, 1758 - mammals
   Order Carnivora Bowdich, 1821 - carnivores
     Family Mustelidae Batsch, 1788 - weasels, badgers, skunks, and otters
       Subfamily Lutrinae Bonaparte, 1838 - otters
         Genus Aonyx Lesson, 1827 - clawless otters
           1 Aonyx capensis (Schinz, 1821) - African clawless otter
           2 Aonyx congicus Lönnberg, 1910 see Aonyx congica Lonnberg, 1910