The black dogfish (Centroscyllium fabricii) is a species of shark of the family of Etmopterides. It is common in the outer continental shelf and continental slope at depths ranging from 180 to 2250 meters. Females generally live in deeper water than males, and depending on the region, young sharks may attend a depth different from that of adults. This species is widespread in the Atlantic Ocean, from Greenland to the Iceland and Virginia to the north of West Africa, south-west Africa and southern Argentina. The spiny black as an average from 60 to 75 cm in length, making it the largest member of its family. It has a massive body and dark brown, which is darker below than above and organs and is bioluminescent. Its two dorsal fins are preceded by large spines, and the anal fin is absent.
Moving in bed, the black dogfish is a predator that consumes mainly opportunistic bony fish, of crustaceans and cephalopods. It is viviparous; females give birth to litters of 4-40 juveniles fed forward by a yolk sac. There is no definite breeding season. The spiny black-catch of commercial fishing in high seas operating in the North Atlantic and is of low commercial value and is usually discarded. Since much of its habitat is deep water and its population in the northwest Atlantic appears to be stable, the International Union for Conservation of Nature (IUCN) has classified this species in the "concern minor." However, it is classified as "near threatened" in the North Atlantic, where the population has declined mainly because of overfishing.