Class [Mammalia] Linnaeus, 1758 - mammals Order Carnivora Bowdich, 1821 - carnivores Family Mustelidae Batsch, 1788 - weasels, badgers, skunks, and otters Genus Lutra Brisson, 1762 - river otters Lutra sumatrana (Gray, 1865) - hairy-nosed otter