1) Aquatic mammal 2) Docile marine mammal 3) Dugong 4) Dugong or manatee 5) Endangered animal in florida 6) Endangered swimmer 7) Gentle underwater creature 8) Large aquatic mammal 9) Large marine herbivore 10) Manatee 11) Manatee or dugong 12) Marine mammal 13) Placid everglades denizen 14) Serene coastal swimmer 
bogie ballast hopper, code YGA/YGB/YGH