Elasmobranchii (sharks and rays) > Squatiniformes
(Angel sharks) > Squatinidae
Etymology: Squatina: Latin for skate, which angel sharks superficially resemble, presumably tautonymous with Squalus squatina Linnaeus 1758 (no species mentioned). (See ETYFish); armata: Latin for armed with a weapon, referring to heavy thorns on snout and between eyes, large hooked thorns on back, and enlarged thorns on leading edge of pectoral fins. (See ETYFish).
More on author: Philippi.
This species is questionably a synonym of Squatina californica Ayres, 1859 in Eschmeyer (CofF ver. Jul. 2010: Ref. 84883) following various authors. Please send references, or more studies are needed.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal. Subtropical
Southeast Pacific: Chile. Not in Compagno's 1999 checklist (Ref. 35766).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Ovoviviparous (Ref. 50449).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ovoviviparous, embryos feed solely on yolk (Ref. 50449).
Pequeño, G., 1989. Peces de Chile. Lista sistematica revisada y comentada. Rev. Biol. Mar., Valparaiso 24(2):1-132. (Ref. 9068)
IUCN Red List Status (Ref. 125652)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00276 - 0.01903), b=3.04 (2.81 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.0 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Fishing Vulnerability (Ref. 59153
): High to very high vulnerability (72 of 100).
Nutrients (Ref. 124155
): Calcium = 24.4 [3.7, 85.0] mg/100g ; Iron = 0.827 [0.234, 2.230] mg/100g ; Protein = 19.2 [17.1, 21.2] % ; Omega3 = 0.397 [0.191, 0.795] g/100g ; Selenium = 26.2 [7.0, 67.3] μg/100g ; VitaminA = 22.2 [7.6, 64.7] μg/100g ; Zinc = 0.465 [0.229, 0.966] mg/100g (wet weight);