; subclass Actinopterygii, order Perciformes)
A small family of coastal fish, members of which frequently penetrate into fresh water. They have a deep body, two separate dorsal fins, and, typically, four spines in the anal fin. Scatophagus argus (spotted butterfish or spotted scat), 32 cm, is a fairly common species in the Indo-Pacific region. There are three species.
Subjects: Zoology and Animal Sciences.