Elasmobranchii (sharks and rays) > Carcharhiniformes
(Ground sharks) > Scyliorhinidae
Etymology: Apristurus: Greek, a = without + Greek, pristis = saw + Greek, oura = tail (Ref. 45335).
Environment / Climate / Range
Marine; bathydemersal; depth range 1100 - 1750 m (Ref. 55584). Deep-water; 41°N - 37°N
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 54.2 cm TL male/unsexed; (Ref. 13608)
Short snout, small eye, shorter gill openings. Uniform grayish brown below and above in alcohol (Ref. 6032).
Western Atlantic: off Delaware Bay, USA and off Suriname (Ref. 13608). Eastern Atlantic: Morocco and northwest Africa (Ref. 40643).
Inhabits the continental slope. Maximum length unknown, adolescent at 51 cm TL. Oviparous (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.
IUCN Red List Status (Ref. 90363)
Threat to humans
Fisheries: of no interest
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
CollaboratorsPicturesStamps, CoinsSoundsCiguateraSpeedSwim. typeGill areaOtolithsBrainsVision
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00301 (-0.14572 - 0.15174), b=3.15 (3.06 - 3.24), based on LWR estimates for this family-BS (Ref. 93245
Trophic Level (Ref. 69278
): 3.7 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Very Low, minimum population doubling time more than 14 years (Fec assumed to be <10).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (32 of 100) .
Price category (Ref. 80766