The Antillean Manatee (Trichechus manatus manatus) is an aquatic, marine (saltwater) mammal in the Sirenia order of dugongs. It is also known as a Sea Cow, West Indian Manatee, or Caribbean Manatee. It is not a seal. It is related to the dugong and the elephant. 

The Antillean Manatee looks like a large, grey seal with flippers and a paddle tail. It has lungs, not gills, because it is a mammal, and therefore it needs to come to the surface to breathe. It has a prehensile snout (nose), like an elephant, so that it can grab water plants and bring them to its mouth. It has 6-8 teeth in each jaw. It has short, sparse, sensitive hairs called vibrissae. Each individual hair is called a vibrissal. The vibrissae around its mouth are like whiskers.