Holocephali (chimaeras) >
Chimaeriformes (Chimaeras) >
Callorhinchidae (Plownose chimaeras)
Etymology: Callorhinchus: Tautonymous with Chimaera callorynchus Linnaeus 1758 (but unnecessarily emended from -rynchus to -rhinchus: callum (L.), hard skin; rhynchus (L.), snout, referring to peculiar hoe-shaped proboscis (See ETYFish); callorynchus: callum (L.), hard skin; rhynchus (L.), snout, referring to peculiar hoe-shaped proboscis (See ETYFish).
More on author: Linnaeus.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; demersal; depth range 10 - 116 m (Ref. 34015). Subtropical; 5°C - 10°C (Ref. 34015); 3°S - 56°S, 82°W - 43°W
Southeast Pacific and Southwest Atlantic.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 89.2 cm SL male/unsexed; (Ref. ); common length : 70.0 cm TL male/unsexed; (Ref. 6077)
Short description
Identification keys | Morphology | Morphometrics
Occurs in sandy and muddy substrates. Apparently associated with Stromateus brasiliensis and Discopyge tschudii (Ref. 34015). Oviparous (Ref. 50449). Max length (Itamar Alves Martins, pers. comm., 2002).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Menni, R.C., R.A. Ringuelet and R.H. Aramburu, 1984. Peces marinos de la Argentina y Uruguay. Editorial Hemisferio Sur S.A. Buenos, Aires, Argentina. 359 p. (Ref. 2806)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: commercial
Tools
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 7.5 - 14.8, mean 11.3 °C (based on 125 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00219 - 0.00954), b=3.13 (2.93 - 3.33), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.1 se; based on diet studies.
Resilience (Ref.
120179): Low, minimum population doubling time 4.5 - 14 years (Fec assumed to be <100).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (65 of 100).
Nutrients (Ref.
124155): Calcium = 36.4 [9.4, 104.6] mg/100g; Iron = 0.898 [0.331, 3.776] mg/100g; Protein = 14 [11, 18] %; Omega3 = 0.238 [0.103, 0.526] g/100g; Selenium = 28.6 [5.8, 75.6] μg/100g; VitaminA = 7.6 [2.6, 20.9] μg/100g; Zinc = 0.617 [0.320, 1.178] mg/100g (wet weight); based on
nutrient studies.