Holocephali (chimaeras) > Chimaeriformes
(Chimaeras) > Callorhinchidae
Etymology: Callorhinchus: Greek, kalos, kallos = beautiful + Greek, rhyngchos = snout (Ref. 45335). More on author: Duméril.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 10 - 374 m (Ref. 5578), usually 10 - 200 m (Ref. 3180). Subtropical; 17°S - 35°S, 11°E - 34°E
Southeast Atlantic: Namibia to the Cape and Natal in South Africa (Ref. 5578, 58304).
Length at first maturity / Size / Weight / Age
Maturity: Lm 49.6  range ? - ? cm
Max length : 122 cm TL male/unsexed; (Ref. 3180); max. published weight: 5.3 kg (Ref. 40637)
Morphology | Morphometrics
(total): 1. An elephant fish with a hoe-like snout and arched caudal fin (Ref. 5578). Silvery or bronzy with brown markings on flanks and head; fin webs brown (Ref. 5578).
Found from close inshore and shallow bays to the slope (Ref. 5578). Feeds on small fish and a wide variety of invertebrates (Ref. 27121). Sold commercially as 'silver trumpeter' (Ref. 3180) and considered a delicacy in southern Africa (Ref. 27121). Oviparous (Ref. 50449). Produces egg-cases that are spindle shaped, with broad horizontal flanges (Ref. 36731). Minimum depth reported from Ref. 7403.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Krefft, G., 1990. Callorynchidae. p. 117. 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, Parisl. Vol. 1. (Ref. 7403)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Traumatogenic (Ref. 12484)
Fisheries: minor commercial; gamefish: yes
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 10.3 - 21, mean 16.2 °C (based on 200 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00174 - 0.01096), b=3.12 (2.90 - 3.34), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.52 se; based on food items.
Generation time: 21.3 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Vulnerability (Ref. 59153
): High vulnerability (60 of 100) .