Krøyer's deep sea angler fish

Krøyer's deep sea angler fish (Ceratias holboelli) is a species of fish in the family Ceratiidae, the sea devils. This deep-sea anglerfish is found in all oceans, at depths of 0 to 4,400 m (0 to 14,436 ft), but mainly between 400 and 2,000 m (1,300 and 6,600 ft).[2] Females typically are 77 cm (2.53 ft) long, but can reach 120 cm (3.9 ft).[2] The much smaller males only reach 16 cm (6.3 in) and they are symbiotic, as they attach themselves to a female.[2]

Krøyer's deep sea angler fish
Female with a parasitic male on the belly, preparation at the Zoological Museum of Saint Petersburg
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Lophiiformes
Family:	Ceratiidae
Genus:	Ceratias
Species:	C. holboelli
Binomial name
Ceratias holboelli Krøyer, 1845

The species' scientific epithet commemorates Carl Peter Holbøll, a Danish civil servant and early explorer of the fauna of Greenland. Several specimens have been found in the stomachs of sperm whales caught in the Azores and in the Antarctic.[3]

Other common names include longray seadevil and northern seadevil.[1]