The triplewart seadevil, Cryptopsaras couesii, is a seadevil

Ceratiidae

Sea devils are a family of deep-sea anglerfish otherwise known as Ceratiidae from the Greek keras, "horn", referring to the bioluminescent lure that projects from the fishes' forehead....

 of the family

Family (biology)

In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...

 Ceratiidae

Ceratiidae

Sea devils are a family of deep-sea anglerfish otherwise known as Ceratiidae from the Greek keras, "horn", referring to the bioluminescent lure that projects from the fishes' forehead....

, found in all oceans, from the surface to 2,000 m. Its length is approximately 30 cm for females and 3 cm for males. They belong to the anglerfish

Anglerfish

Anglerfishes are members of the teleost order Lophiiformes . They are bony fishes named for their characteristic mode of predation, wherein a fleshy growth from the fish's head acts as a lure; this is considered analogous to angling.Some anglerfishes are pelagic , while others are benthic...

 family.

Sexual Dimorphism

The species displays extreme sexual dimorphism

Sexual dimorphism

Sexual dimorphism is a phenotypic difference between males and females of the same species. Examples of such differences include differences in morphology, ornamentation, and behavior.-Examples:-Ornamentation / coloration:...

. Females are more typical in appearance to other anglerfish, whereas the males are tiny rudimentary creatures with stunted digestive systems. A male must find a female and attach to her near the vent; he then lives on her parasitically, becoming little more than a sperm-producing appendage.

External links