; class Osteichthyes, subclass Actinopterygii)
A fairly small family of marine or freshwater catfishes that have an eel-like body, tapering towards the tail, four pairs of barbels around the mouth, a short dorsal fin, and pectoral fins which each bear a sharp, poisonous spine that can inflict painful wounds. There are about 30 species. The marine species are found in Indo-Pacific waters and especially around New Guinea and Australia, the freshwater species in Australian rivers.
Subjects: Zoology and Animal Sciences.