Mammalia Linnaeus, 1758 - mammals
Carnivora Bowdich, 1821 - carnivores
Mustelidae Batsch, 1788 - weasels, badgers, skunks, and otters
Lutrinae Bonaparte, 1838 - otters
1 Amblonyx Rafinesque, 1832
see Genus Aonyx Lesson, 1827
2 Aonyx Lesson, 1827 - clawless otters
3 Enhydra Fleming, 1822 - sea otter
4 Lontra Gray, 1843
5 Lutra Brisson, 1762 - river otters
6 Lutrogale Gray, 1865
7 Pteronura Gray, 1837 - giant otter