Dugong

The dugong (Dugong dugon) is a species of marine mammal and is one of the four living species in the order, Sirenia, which includes three species of manatees. It is the only living species in the family, Dugongidae, which also includes it's closest modern relative, the Steller's sea cow. It is the only sirenian in it's range which inhabits waters of the Indo-Pacific. It is largely dependent on seagrass, typically occurring in wide shallow bays, mangrove channels, inter-reefal waters, and waters of large inshore islands. Like all modern sirenians, the dugong lacks a dorsal fin or hind limbs, having a fusiform body. The forelimbs or flippers are paddle-like. The dugong can easily be distinguished from the manatees by it's dolphin-like tail, it's unique skull and teeth. Its snout is sharply downturned, an adaption for feeding on benthic seagrass. The molar teeth are simple and peg-like, unlike the more elaborate molar on manatees.