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African angelshark

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(Redirected from Squatina africana) Species of shark

African angelshark
Conservation status

Near Threatened  (IUCN 3.1)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Squatiniformes
Family: Squatinidae
Genus: Squatina
Species: S. africana
Binomial name
Squatina africana
Regan, 1908
Range of African angelshark (in blue)

The African angelshark (Squatina africana) is an angelshark of the family Squatinidae.

Measurements

Born: 28–30 cm TL; Mature: ~ 80 cm (M), 90 cm (F) TL; Max: ~ 122 cm TL.

Identification

Color: Are a greyish or a reddish-brown, there are many light and dark spots, which are often large granular-centered ocelli in young fish. Obtains larger symmetrical dark bands or saddles, blotches on a broad, angular, high pectoral fins. It has a dark tail base, with white margins. Body: Has simple flat nasal barbels, with its tips tapering or spatulate. The anterior nasal flaps smooth or are slightly fringed. There are no angular lobes on lateral dermal flaps. Enlarged thorns on its head, and not back. Obtains a concave between its eyes.

Distribution and Range

Western Indian Ocean: found in east and southern Africa; South Africa to Mozambique, Tanzania and Madagascar, and possibly Somalia. Nominal west African records possibly based on another species. 4°S - 32°S.

Climate and habitat

Subtropical; continental shelf and upper slope, demersal, marine. Usually found in sand and mud. From surfing too? - 494 m, but usually occurs at 60–300 m down.

Behavior

Lies in wait buried underneath sand or mud to ambush its prey with lightning-fast reflexes and great precision.

Biology

Diet: Feeds on small bony fishes, squid and octopuses, and including shrimp. Reproduction: Is ovoviviparous and gives birth to at least 7 or 11 pups per litter.

Status

IUCN Red List: near threatened. It is common only on the east coast of South Africa. Trawl fishery bycatch.

Threat to humans

Traumatogenic.

Resilience and vulnerability

Very low, minimum population doubling time more than 14 years; high vulnerability.

References

  1. Cliff, G.; Bennett, R.; Da Silva, C.; Ebert, D.A.; Fennessy, S.; Fernando, S.; Gledhill, K.; Jabado, R.W.; Kuguru, B.; Leslie, R.; McCord, M.E.; Samoilys, M.; Winker, H. (2019). "Squatina africana". IUCN Red List of Threatened Species. 2019: e.T44996A113073072. doi:10.2305/IUCN.UK.2019-1.RLTS.T44996A113073072.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
Squatina africana
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