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Elasmobranchii (tubarões e raias) (sharks and rays) > Squatiniformes (Angel sharks) > Squatinidae (Angel sharks)
Etymology: Squatina: Latin for skate, which angel sharks superficially resemble, presumably tautonymous with Squalus squatina Linnaeus 1758 (no species mentioned). (See ETYFish); heteroptera: Name refers to the obvious difference in size, shape and area of the two dorsal fins..

Issue
Synonym of Squatina dumeril according to (Weigmann, 2016, Ref. 106604).

Environment: milieu / climate zone / depth range / distribution range Ecologia

marinhas demersal; intervalo de profundidade ? - 164 m (Ref. 74686). Tropical

Distribuição Países | Áreas FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Western Atlantic: Gulf of Mexico.

Tamanho / Peso / Idade

Maturity: L_m ? range ? - ? cm
Max length : 49.0 cm TL macho/indeterminado; (Ref. 74686)

Descrição breve Chaves de identificação | Morfologia | Morfometria

This species has no thorns nor enlarged denticles on the mean dorsal line. The dermal denticles has 4 keels extending posteriorly, its widest base, approximately twice its length. Dorsal fins are very different in size, shape and area, with their base about half their height. Nasal lobes are simple and similar in length; the first and last are spatula-like in shape; the central part irregularly quadrangular. its edge with several lobes. General body color is dark brown at the dorsal surface, ocelli absent, but with 2 distinct round black spots on the upper edge of the pectoral fins and with irregular, scattered whitish spots. Each side of jaws with 8 triangular, non-serrated, and straight teeth, the upper with 2 functional series, the lower with only one (Ref. 74686).

Life cycle and mating behavior Maturities | Reprodução | Spawnings | Egg(s) | Fecundities | Larvas

Referência principal Upload your references | Referências | Coordenador : Compagno, Leonard J.V. | Colaboradores

Castro-Aguirre, J.L., H.S. Espinosa Pérez and L. Huidobro Campos, 2006. Dos nuevas especies del género Squatina (Chondrichthyes: Squatinidae) del Golfo de México. Rev. Biol. Trop. (Int. J. Trop. Biol.) [2006] 54 (3):1031-1040. (Ref. 74686)

Categoria na Lista Vermelha da IUCN (Ref. 130435)

Não avaliado

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para o homem

Harmless

Utilização humana

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00676 (0.00293 - 0.01558), b=3.07 (2.88 - 3.26), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Nível Trófico (Ref. 69278): 3.8 ±0.5 se; based on size and trophs of closest relatives

Resiliência (Ref. 120179): Baixo, tempo mínimo de duplicação da população 4,5 - 14 anos (Preliminary low fecundity).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (39 of 100).

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Squatina heteroptera Castro-Aguirre, Espinosa Pérez & Huidobro Campos, 2007