bonefish, (Albula vulpes), marine game fish of the family Albulidae (order Elopiformes). It inhabits shallow coastal and island waters in tropical seas and is admired by anglers for its speed and strength. Maximum length and weight are about 76 cm (30 inches) and 6.4 kg (14 pounds). The bonefish has a deeply notched caudal fin (near the tail) and a small mouth beneath a pointed, piglike snout. It grubs on the bottom for worms and other food. The shafted bonefish (Dixonina nemoptera) is the only other species of the family.