Great lanternshark explained

The great lanternshark (Etmopterus princeps) is a shark of the family Etmopteridae found in the northeast and northwest Atlantic.^[1] Its name was given because, at the time of its discovery, it was thought to be bioluminescent, but this has been challenged.^[2]

Description

Great lanternsharks are slender and small, and are generally found in deep water. They can grow up to 75cm (30inches).^[3] They are black or very dark brown, uniformly, in color, and lack an anal fin. They live at depths between 570m (1,870feet) and 2200m (7,200feet). The dorsal fins have an associated spine.^[4]

Notes and References

1. Book: Compagno, Leonard J. V. . Sharks of the World . Dando . Marc . Fowler . Sarah L. . 2005 . Princeton University Press . 0-691-12072-2 . New Jersey . Leonard Compagno.
2. Web site: Rough Sagre Shark, Deep sea animals, Sea sharks, Fishes, Deep sea explorations. www.deepseawaters.com. 2019-01-06.
3. Coelho . Rui . Erzini . Karim . October 2005 . Length at first maturity of two species of lantern sharks (Etmopterus spinax and Etmopterus pusillus) off southern Portugal . . 85 . 5 . 1163–1165 . 10.1017/S0025315405012245.
4. Web site: Rough Sagre Shark. new-brunswick.net. 2019-01-06.