An aquatic herbivorous mammal (Halicore dugong), of the order Sirenia, allied to the manatee, but with a bilobed tail. It inhabits the Red Sea, Indian Ocean, East Indies, and Australia.
                                                            
                                                     
                        
                                                
                        
                        
                            A genus of large, whalelike, tropical mammals that live along the shores of the Indian Ocean and feed mostly on seaweed. Biblically, a sea cow.