Class [Mammalia] Linnaeus, 1758 - mammals
   Order Carnivora Bowdich, 1821 - carnivores
     Family Mustelidae Batsch, 1788 - weasels, badgers, skunks, and otters
       Genus Aonyx Lesson, 1827 - clawless otters
         1 Aonyx capensis (Schinz, 1821) - African clawless otter
         2 Aonyx cinerea (Illiger, 1815) - Oriental small-clawed otter
         3 Aonyx congica Lonnberg, 1910 - Zaire clawless otter see Aonyx capensis congica Lönnberg, 1910