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Arrowhead dogfish

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Species of shark

Arrowhead dogfish
Conservation status

Near Threatened  (IUCN 3.1)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Squaliformes
Family: Centrophoridae
Genus: Deania
Species: D. profundorum
Binomial name
Deania profundorum
(H. M. Smith & Radcliff, 1912)
Range of arrownose dogfish (in blue)
Synonyms

Deania elegans Springer, 1959

The arrowhead dogfish (Deania profundorum) is a small little known deepwater dogfish of the family Centrophoridae.

Physical characteristics

The arrowhead dogfish has an extremely long angular snout, no anal fin, small first dorsal and long rear dorsal spines, and pitchfork-shaped dermal denticles. The first dorsal fin is short and placed high on the back. This is the smallest of the genus Deania, with a maximum length of only 76 cm.

Distribution

It is found in the Pacific Ocean around the Philippines, in the Western Atlantic Ocean off of the Carolinas, in the Eastern Atlantic all along Africa's west coast, and in the Indian Ocean off South Africa.

Habits and habitat

This shark is a little-known deepwater species that lives at depths between 300 and 1,785 m. It is ovoviviparous with five to seven pups per litter. It eats bony fish, squid, and crustaceans.

References

  1. Finucci, B.; Cheok, J.; Cotton, C.F.; Kulka, D.W.; Neat, F.C.; Rigby, C.L.; Tanaka, S.; Walker, T.I. (2020). "Deania profundorum". IUCN Red List of Threatened Species. 2020: e.T161551A44016720. doi:10.2305/IUCN.UK.2020-3.RLTS.T161551A44016720.en. Retrieved 18 November 2021.
Extant shark species
Order Carcharhiniformes (Ground sharks)
Hemigaleidae
(Weasel sharks)
Hemipristis
Chaenogaleus
Hemigaleus
Paragaleus
Leptochariidae
Leptocharias
Proscylliidae
(Finback sharks)
Ctenacis
Eridacnis
Proscyllium
Pseudotriakidae
Gollum
Pseudotriakis
Sphyrnidae
(Hammerhead sharks)
Eusphyra
Sphyrna
Triakidae
(Houndsharks)
Furgaleus
Galeorhinus
Gogolia
Hemitriakis
Hypogaleus
Iago
Mustelus
(Smooth-hounds)
Scylliogaleus
Triakis
Carcharhinidae
  • Large family listed below
Scyliorhinidae
  • Large family listed below
Family Carcharhinidae (Requiem sharks)
Carcharhinus
Galeocerdo
Glyphis
(River sharks)
Isogomphodon
Lamiopsis
Loxodon
Nasolamia
Negaprion
Prionace
Rhizoprionodon
Scoliodon
Triaenodon
Family Scyliorhinidae (Catsharks)
Apristurus
Asymbolus
Atelomycterus
Aulohalaelurus
Cephaloscyllium
Cephalurus
Figaro
Galeus
Halaelurus
Haploblepharus
Holohalaelurus
Parmaturus
Pentanchus
Poroderma
Schroederichthys
Scyliorhinus
Order Echinorhiniformes (Bramble sharks)
Echinorhinidae
Echinorhinus
Order Heterodontiformes (Bullhead sharks)
Heterodontidae
Heterodontus
Order Hexanchiformes
Chlamydoselachidae
Chlamydoselachus
Hexanchidae
(Cow sharks)
Heptranchias
Hexanchus
Notorynchus
Order Lamniformes (Mackerel sharks)
Alopiidae
Alopias
(Thresher sharks)
Cetorhinidae
Cetorhinus
Lamnidae
Carcharodon
Isurus
Lamna
Megachasmidae
Megachasma
Mitsukurinidae
Mitsukurina
Odontaspididae
Carcharias
Odontaspis
Pseudocarchariidae
Pseudocarcharias
Order Orectolobiformes (Carpet sharks)
Brachaeluridae
Brachaelurus
Heteroscyllium
Ginglymostomatidae
(Nurse sharks)
Ginglymostoma
Nebrius
Pseudoginglymostoma
Hemiscylliidae
(Bamboo sharks)
Chiloscyllium
Hemiscyllium
Orectolobidae
(Wobbegongs)
Eucrossorhinus
Orectolobus
Sutorectus
Parascylliidae
(Collared carpet sharks)
Cirrhoscyllium
Parascyllium
Rhincodontidae
Rhincodon
Stegostomatidae
Stegostoma
Order Pristiophoriformes (Sawsharks)
Pristiophoridae
Pliotrema
Pristiophorus
Order Squaliformes
Centrophoridae
(Gulper sharks)
Centrophorus
Deania
Dalatiidae
Euprotomicroides
Heteroscymnoides
Mollisquama
Dalatias
Isistius
Euprotomicrus
Squaliolus
Etmopteridae
Aculeola
Centroscyllium
Etmopterus
(Lantern sharks)
Miroscyllium
Trigonognathus
Oxynotidae
(Rough sharks)
Oxynotus
Somniosidae
(Sleeper sharks)
Centroscymnus
Centroselachus
Proscymnodon
Scymnodalatias
Scymnodon
Somniosus
Zameus
Squalidae
(Dogfish sharks)
Cirrhigaleus
Squalus
(Spurdogs)
Order Squatiniformes (Angel sharks)
Squatinidae
Squatina
Taxon identifiers
Deania profundorum
Nasisqualus profundorum
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