Which Fish Have Spines?

What kind of fish has spines?

Spines have a variety of uses. In catfish, they are used as a form of defense; many catfish have the ability to lock their spines outwards. Triggerfish also use spines to lock themselves in crevices to prevent them being pulled out. Lepidotrichia are bony, bilaterally-paired, segmented fin rays found in bony fishes.

What fish has spines on its back?

Red Lionfish

Lionfishes (Pterois) make up any of several species of showy Indo-Pacific fishes of the scorpion fish family, Scorpaenidae (order Scorpaeniformes). They are noted for their venomous fin spines, which are capable of producing painful, though rarely fatal, puncture wounds.