Monkfish
Fossil range: Eocene
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Lophiiformes
Family: Lophiidae
Genus: Lophius
Species
Lophius americanus
Lophius budegassa
Lophius gastrophysus
Lophius litulon
Lophius piscatorius
Lophius vaillanti
Lophius vomerinus
Monkfish is the English name of a number of types of fish in the northwest Atlantic, most notably the species of the anglerfish genus Lophius and the angelshark genus Squatina. The term is also occasionally used for a European sea monster more often called a sea monk.
Monkfish is the most common English name for the genus Lophius in the northwest Atlantic but goosefish is used as the equivalent term on the eastern coast of North America. Monkfish have three long filaments sprouting from the middle of its head; these are the detached and modified three first spines of the anterior dorsal fin. As in most anglerfish species, the longest filament is the first, which terminates in an irregular growth of flesh, the esca. This modified fin ray is movable in all directions. This esca is used as a lure to attract other fishes, which monkfish then typically swallow whole. Experiments have shown, however, that whether the prey has been attracted to the lure or not is not strictly relevant, as the action of the jaws is an automatic reflex triggered by contact with the esca.
It grows to a length of more than 5 ft; specimens of 3 ft are common.
Two species Lophius piscatorius and Lophius budegassa are found in north-western Europe and referred to as monkfish, with L. piscatorius by far the most common species around the British Isles.
A second group of fish also known as monkfish are members of the genus Squatina, in the angel shark family Squatinidae. These are of somewhat similar shape to the anglerfish, but completely unrelated; like the true sharks, they are elasmobranchs. These fish are only of minor significance for human consumption, though they are endangered because they are caught as bycatch by trawlers.
