Species of shark
Argentine angelshark
Conservation status
Critically Endangered (IUCN 3.1 )[1]
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Chondrichthyes
Superorder:
Selachimorpha
Order:
Squatiniformes
Family:
Squatinidae
Genus:
Squatina
Species:
S. argentina
Binomial name
Squatina argentina (, 1930)
Range of Argentine angelshark (in blue)
The Argentine angelshark (Squatina argentina ) is an angelshark of the family Squatinidae .
Measurements [ ]
Born: N/A.; Mature: ~ 100.0 cm - 120 cm TL; Max: 138 (?170) cm TL.
Identification [ ]
Colour: Are a purplish-brown color with many scattered dark brown spots (with no white), that are mostly in circular groups around a central spot. No ocelli. Obtains paler dorsal fins. Body: Has simple spatulate nasal barbels. Also slightly fringed or a smooth anterior nasal flaps with no triangular lobes on lateral head folds. Has concave between its eyes. Obtains enlarged thorns on snout, and not back. Its pectoral fins are large, broad, and obtusely angular. Convex leading edge forming a very distinct 'shoulder'.
Distribution & range [ ]
Southwest Atlantic : from southern Brazil down south to Patagonia . 19°S - 53°S, 68°W - 38°W.
Climate & habitat [ ]
Subtropical; continental shelf and upper slope, demersal, marine. Found 50 – 320 m (usually 100 – 400 m) down.
Behaviour [ ]
Unknown.
Biology [ ]
Diet: Feeds on demersal fishes, shrimp, and squid. Reproduction: Are ovoviviparous, birth about 7 to 11 pups per litter.
Threat to humans [ ]
Traumatogenic.
Resilience & vulnerability [ ]
Very low, minimum population doubling time more than 14 years; high to very high vulnerability.
References [ ]
Froese, Rainer; Pauly, Daniel (eds.) (2006). "Squatina argentina " in FishBase . July 2006 version.
Compagno , Dando, & Fowler, Sharks of the World , Princeton University Press, New Jersey 2005 ISBN 0-691-12072-2
Sharks portal
Extant shark species
Kingdom Animalia
Phylum Chordata
Subphylum Vertebrata
Class Chondrichthyes
Subclass Elasmobranchii
Subdivision Selachii
Order Carcharhiniformes (Ground sharks)
Hemigaleidae (Weasel sharks)
Leptochariidae
Leptocharias
Barbeled houndshark (L. smithii )
Proscylliidae (Finback sharks)
Pseudotriakidae
Gollum
Slender smooth-hound (G. attenuatus )
Pseudotriakis
False catshark (P. microdon )
Sphyrnidae (Hammerhead sharks)
Eusphyra
Winghead shark (E. blochii )
Sphyrna
Scalloped bonnethead (S. corona )
Whitefin hammerhead (S. couardi )
Scalloped hammerhead (S. lewini )
Scoophead (S. media )
Great hammerhead (S. mokarran )
Bonnethead (S. tiburo )
Smalleye hammerhead (S. tudes )
Smooth hammerhead (S. zygaena )
Triakidae (Houndsharks)
Carcharhinidae
Large family listed below
Scyliorhinidae
Large family listed below
Family Carcharhinidae (Requiem sharks)
Carcharhinus
Blacknose shark (C. acronotus )
Silvertip shark (C. albimarginatus )
Bignose shark (C. altimus )
Graceful shark (C. amblyrhynchoides )
Grey reef shark (C. amblyrhynchos )
Pigeye shark (C. amboinensis )
Borneo shark (C. borneensis )
Copper shark (C. brachyurus )
Spinner shark (C. brevipinna )
Nervous shark (C. cautus )
Whitecheek shark (C. dussumieri )
Silky shark (C. falciformis )
Creek whaler (C. fitzroyensis )
Galapagos shark (C. galapagenisis )
Pondicherry shark (C. hemiodon )
Finetooth shark (C. isodon )
Smoothtooth blacktip shark (C. leiodon )
Bull shark (C. leucas )
Blacktip shark (C. limbatus )
Oceanic whitetip shark (C. longimanus )
Hardnose shark (C. macloti )
Blacktip reef shark (C. melanopterus )
Dusky shark (C. obscurus )
Caribbean reef shark (C. perezii )
Sandbar shark (C. plumbeus )
Smalltail shark (C. porosus )
Blackspot shark (C. sealei )
Night shark (C. signatus )
Spottail shark (C. sorrah )
Australian blacktip shark (C. tilstoni )
Galeocerdo Glyphis (River sharks)
Ganges shark (G. gangeticus )
Northern river shark (G. garricki )
Speartooth shark (G. glyphis )
Irrawaddy river shark (G. siamensis )
Borneo river shark (Glyphis sp. B )
Isogomphodon
Daggernose shark (I. oxyrhynchus )
Lamiopsis Loxodon Nasolamia Negaprion
Sicklefin lemon shark (N. acutidens )
Lemon shark (N. brevirostris )
Prionace Rhizoprionodon Scoliodon
Spadenose shark (S. laticaudus )
Triaenodon
Whitetip reef shark (T. obesus )
Family Scyliorhinidae (Catsharks)
Order Heterodontiformes (Bullhead sharks)
Chlamydoselachidae
Chlamydoselachus
Frilled shark (C. anguineus )
Southern African frilled shark (C. africana )
Hexanchidae (Cow sharks)
Heptranchias Hexanchus
Bluntnose sixgill shark (H. griseus )
Bigeyed sixgill shark (H. nakamurai )
Notorynchus
Broadnose sevengill shark (N. cepedianus )
Order Lamniformes (Mackerel sharks)
Alopiidae
Alopias (Thresher sharks)
Pelagic thresher (A. pelagicus )
Bigeye thresher (A. superciliosus )
Common thresher (A. vulpinus )
Alopias sp. (A. sp. )
Cetorhinidae
Cetorhinus
Basking shark (C. maximus )
Lamnidae
Carcharodon
Great white shark (C. carcharias )
Isurus
Shortfin mako shark (I. oxyrinchus )
Longfin mako shark (I. paucus )
Lamna
Salmon shark (L. ditropis )
Porbeagle (L. nasus )
Megachasmidae
Megachasma
Megamouth shark (M. pelagios )
Mitsukurinidae
Mitsukurina
Goblin shark (M. owstoni )
Odontaspididae
Carcharias
Grey nurse shark (C. taurus )
Indian sand tiger (C. tricuspidatus )
Odontaspis
Smalltooth sand tiger (O. ferox )
Bigeye sand tiger (O. noronhai )
Pseudocarchariidae
Pseudocarcharias
Crocodile shark (P. kamoharai )
Order Orectolobiformes (Carpet sharks)
Brachaeluridae
Brachaelurus Heteroscyllium
Bluegrey carpetshark (H. colcloughi )
Ginglymostomatidae (Nurse sharks)
Ginglymostoma
Nurse shark (G. cirratum )
Nebrius
Tawny nurse shark (N. ferrugineus )
Pseudoginglymostoma
Short-tail nurse shark (P. brevicaudatum )
Hemiscylliidae (Bamboo sharks)
Chiloscyllium
Arabian carpetshark (C. arabicum )
Burmese bamboo shark (C. burmensis )
Bluespotted bamboo shark (C. caerulopunctatum )
Grey bamboo shark (C. griseum )
Hasselt's bamboo shark (C. hasseltii )
Slender bamboo shark (C. indicum )
Whitespotted bamboo shark (C. plagiosum )
Brownbanded bamboo shark (C. punctatum )
Hemiscyllium
Indonesian speckled carpetshark (H. freycineti )
H. galei
Papuan epaulette shark (H. hallstromi )
H. henryi
Epaulette shark (H. ocellatum )
Hooded carpetshark (H. strahani )
Speckled carpetshark (H. trispeculare )
Orectolobidae (Wobbegongs)
Parascylliidae (Collared carpet sharks)
Rhincodontidae
Stegostomatidae
Stegostoma
Zebra shark (S. fasciatum )
Order Pristiophoriformes (Sawsharks)
Order Squaliformes
Centrophoridae (Gulper sharks)
Centrophorus
Needle dogfish (C. acus )
Dwarf gulper shark (C. atromarginatus )
Gulper shark (C. granulosus )
Dumb gulper shark (C. harrissoni )
Blackfin gulper shark (C. isodon )
Lowfin gulper shark (C. lusitanicus )
Smallfin gulper shark (C. moluccensis )
Taiwan gulper shark (C. niaukang )
Leafscale gulper shark (C. squamosus )
Mosaic gulper shark (C. tessellatus )
Little gulper shark (C. uyato )
Deania
Dalatiidae
Euprotomicroides
Taillight shark (E. zantedeschia )
Heteroscymnoides
Longnose pygmy shark (H. marleyi )
Mollisquama Dalatias Isistius
Cookiecutter shark (I. brasiliensis )
South China cookiecutter shark (I. labialis )
Largetooth cookiecutter shark (I. plutodus )
Euprotomicrus Squaliolus
Smalleye pygmy shark (S. aliae )
Spined pygmy shark (S. laticaudus )
Etmopteridae
Aculeola
Hooktooth dogfish (A. nigra )
Centroscyllium Etmopterus (Lantern sharks) Miroscyllium
Rasptooth dogfish (M. sheikoi )
Trigonognathus
Viper dogfish (T. kabeyai )
Oxynotidae (Rough sharks)
Somniosidae (Sleeper sharks)
Squalidae (Dogfish sharks)
Order Squatiniformes (Angel sharks)