Sleek Unicornfish, Naso Hexacanthus, North Male Atoll, Indian Ocean, Maldives

sleek unicornfish naso hexacanthus north male atoll indian ocean maldives elongate surgeonfish acanthurus mata surgeonfish fish acanthuridae thorn tail tang unicornfish coral reef coral reef colored multicolored species rich banana reef geography nature sea ocean sealife marine wildlife underwater no people one animal full length side view horizontal rm