Environment / Climate / Range
Marine; bathydemersal; depth range 200 - 2600 m (Ref. 6871). Deep-water; 65°N - 49°S
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 120 cm OT male/unsexed; (Ref. 26346); 102.5 cm TL (female)
Morphology | Morphometrics
soft rays: 0. A longnose chimaera with a rather long, narrow, depressed snout, a small eye situated above or behind the mouth, a rather long first dorsal fin and spine, knobby tooth plates, and caudal fin lanceolate with no tubercles on upper edge but with a long terminal filament (Ref. 5578, 6871, 41248). Dark brown or blackish in color (Ref. 5578). No separate anal fin. Claspers are rod like, rather slender, unbranched, with tip somewhat swollen. Jugular and oral canals arising separately from orbital, with a short interspace; angular (maxillary) canal joining suborbital about 2/7 of distance from front level of eye toward tip of snout (Ref. 41248).
Eastern Atlantic: Iceland, Faeroe Islands, Rockall Trough along Ireland to northern France; Canary Islands and off Cap Blanc, Mauritania; Namibia and South Africa (Ref. 5578). Western Atlantic: Nova Scotia, Canada to Chesapeake Bay in USA; southern Brazil. North Pacific: off Japan and California, USA; also 100 km off southern Baja California. South Pacific: off New Zealand and Australia (Ref. 7300).
Found on the continental slope and ocean floor (Ref. 26346). Appears to feed mainly on shellfish and crustaceans (Ref. 6871). Maximum length 120 cm without tail filament (Ref. 26346).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous, young hatch at about 10-13 cm (Ref. 26346).
Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
Fisheries: of no interest
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.7539 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.6 ±0.50 se; Based on food items.
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (Assuming Fec <100).
Vulnerability (Ref. 59153
): Moderate vulnerability (45 of 100) .