Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 150 - 500 m (Ref. 4444), usually 200 - 470 m (Ref. 36731). Deep-water; - 23°S
Eastern Atlantic: Cape Blanc, Mauritania to Walvis Bay, Namibia (Ref. 4444). Indian Ocean: Arabian Sea (Ref. 45795) and India (Ref. 118627).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 130 cm TL male/unsexed; (Ref. 36731)
Morphology | Morphometrics
A longnose chimaera with a narrow, slightly flattened snout, and blunt-edged, ridged tooth plates; pectoral fins short and broad, anal fin large and curved, and caudal fin with no tubercles on upper edge but with a short terminal filament (Ref. 5578). Dark brown in color (Ref. 5578).
Found on or near the bottom of the upper slope (Ref. 5578). Feeds on swimming crabs (Ref. 5578) and demersal fish (Ref. 27637). Oviparous (Ref. 205). Lays spindle-shaped eggs (Ref. 5578).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Krefft, G., 1990. Rhinochimaeridae. p. 114-116. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4444)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 7.4 - 15.6, mean 12.3 °C (based on 83 cells).
Phylogenetic diversity index (Ref. 82805
= 0.6289 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00182 (0.00073 - 0.00455), b=3.13 (2.90 - 3.36), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 4.0 ±0.70 se; based on food items.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Assuming Fec <100).
Vulnerability (Ref. 59153
): High to very high vulnerability (68 of 100) .