15 Species in Family Mustelidae
| Scientific Name | Author | English Name |
|---|---|---|
| Aonyx capensis | (Schinz, 1821) | African small-clawed otter |
| Aonyx cinerea | (Illiger, 1815) | Oriental small-clawed otter |
| Aonyx congicus | Lönnberg, 1910 | Congo clawless otter |
| Enhydra lutris | (Linnaeus, 1758) | Sea otter |
| Hydrictis maculicollis | (Lichtenstein, 1835) | Spot-necked otter |
| Lontra longicaudis | (Olfers, 1818) | Neotropical river otter |
| Lontra provocax | (Thomas, 1908) | Southern River otter |
| Lutra canadensis | (Schreber, 1777) | American river otter |
| Lutra felina | (Molina, 1782) | Marine otter |
| Lutra lutra | (Linnaeus, 1758) | Eurasian river otter |
| Lutra nippon | Imaizumi & Yoshiyuki, 1989 | Japanese river otter |
| Lutra sumatrana | (Gray, 1865) | |
| Lutrogale perspicillata | (Geoffroy Saint-Hilaire, 1826) | Smooth-coated otter |
| Neovison macrodon | (Prentis, 1903) | Sea mink |
| Pteronura brasiliensis | (Gmelin, 1788) | Giant otter |