Anomalopidae

bioluminescent organs located underneath their eyes, for which they are named. These light organs contain luminous bacteria and can be "shut off" by the fish using either a dark lid or by being drawn into a pouch. They are used to communicate, attract prey, and evade predators.^[2]

nocturnal, feeding at night on small crustaceans. Some species move to shallow waters near coral reefs at night, but otherwise, they are exclusively deep water fish.^[4] This tends to make their collection difficult, and as such they are a poorly understood group.^[5]

Kryptophanaron alfredi from the Caribbean; and K. harveyi from Baja California.^[6] In 2019 the genus Photoblepharon was reduced to only 2 species: P. palpebratum from the eastern Indian Ocean and the western Pacific Ocean and P. steinitzi from the Red Sea, Oman, and western Indian Ocean.^[7] Other genera include Parmops and Phthanophaneron