Triplewart seadevil

The triplewart seadevil (Cryptopsaras couesii) is a species of anglerfish in the family Ceratiidae. It is the only species of the genus Cryptopsaras.

 Description 

 Physical appearance 
Female triplewart seadevils have a long body. It has a bioluminescent organ, the esca, on its head. Adult females have jet-black skin while juveniles are dark brown.

 Sexual dimorphism 
Triplewart seadevils exhibit extreme sexual dimorphism, where males parasitize females.

 References 

Category:IUCN Red List least concern species
Category:Bioluminescent animals
Category:Ray-finned fish