; subclass Actinopterygii, order Syngnathiformes)
A family of marine tropical fish characterized by a very elongate body, a long compressed snout, a series of isolated dorsal spines, and a rounded tail fin. Found mainly in reefs or inshore rocky areas, they can be encountered swimming in an almost vertical position, hidden by sea-grass leaves or coral branches. There are about four species.
Subjects: Zoology and Animal Sciences.