; subclass Actinopterygii, order Perciformes)
A monospecific family (Luvarus imperialis), living in the open seas, of large fish (up to 2 m) that have a robust, deep body, blunt head, small mouth, long dorsal and anal fins, and a narrow tail with a lunate tail fin. The anus is located between the minute pelvic fins, a rather unusual position in fish. The louvar has world-wide distribution in tropical and subtropical seas.
Subjects: Zoology and Animal Sciences.