Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 250 - 750 m (Ref. 55584). Deep-water; 5°C - 11°C; 34°N - 12°N
Western Central Atlantic: South Carolina to Florida (USA), northern Gulf of Mexico and Caribbean coast from Belize to Nicaragua.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 36.0 cm TL male/unsexed; (Ref. 244); 43.0 cm TL (female)
Morphology | Morphometrics
Presence of caudal crest of large denticles. Ground tint pale yellowish brown, strikingly marked along sides and back with row of dark brown blotches and spots (Ref. 6032).
Found on the upper continental and insular slopes. Feeds on deepwater shrimps. There is partial segregation by depth. Ovoviviparous (Ref. 50449).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Ovoviviparous, embryos feed solely on yolk (Ref. 50449).
Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: of no interest
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 9.8 - 18.1, mean 13.1 °C (based on 54 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00316 (0.00147 - 0.00681), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.6 ±0.59 se; based on food items.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (32 of 100) .