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); pseudocellata: pseudo-, from pseudes (Gr.), false; ocellata (L.), having little eyes (ocelli), referring to indistinct ocellate markings on pectoral fins. (See ETYFish).
More on authors: Last & White.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 150 - 312 m (Ref. 74939). Tropical; 18°S - 25°S
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Eastern Indian Ocean: northwestern Australia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 75.1 cm TL male/unsexed; (Ref. 74939); 64.0 cm TL (female)
Morphology | Morphometrics
Body strongly depressed anteriorly, firm. Trunk strongly depressed, almost ray-like, deepest over abdomen; not tapering abruptly at pelvic-fin insertion, tail strongly depressed, even at origin of caudal fin. Abdomen moderately elongate. Head broad, extended laterally, strongly depressed. Dermal denticles covering entire dorsal surface of body; less dense, absent on posterior borders of fins (Ref. 74939).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Last, P.R. and W.T. White, 2008. Three new angel sharks (Chondrichthyes:Squatinidae) from the Indo-Australian region. Zootaxa 1734:1-26. (Ref. 74939)
IUCN Red List Status (Ref. 126983)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 14.1 - 20.4, mean 18.9 °C (based on 8 cells).
Phylogenetic diversity index (Ref. 82804
= 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
Trophic level (Ref. 69278
): 3.9 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary low fecundity).
Fishing Vulnerability (Ref. 59153
): Moderate to high vulnerability (50 of 100).