dugong

noun2

1. •
   A plant-eating sirenian of the species Dugong dugon, found in tropical regions and having a fluked tail.

   • “What are those things that aren’t seals? Much worse than seals. Big, blubbery things. Dugongs.” — 1988
2. •
   Any animal of the family Dugongidae, of which the monotypic genus Dugong is the only extant kind.