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Holocephali (chimaeras) > Chimaeriformes (Chimaeras) > Callorhinchidae (Plownose chimaeras)
Etymology: Callorhinchus: Greek, kalos, kallos = beautiful + Greek, rhyngchos = snout (Ref. 45335).

Environment / Climate / Range Ecology

Marine; brackish; demersal; oceanodromous (Ref. 51243); depth range 0 - 227 m (Ref. 26346). Subtropical, preferred 16°C (Ref. 107945); 33°S - 50°S

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Southwest Pacific: southern Australia and New Zealand.

Length at first maturity / Size / Weight / Age

Maturity: L_m 71.0, range 70 - ? cm
Max length : 125 cm TL male/unsexed; (Ref. 26346); common length : 75.0 cm TL male/unsexed; (Ref. 9258)

Occurs on continental shelves to depths of at least 200 m (Ref. 6871). Migrates into large estuaries and inshore bays in the spring to breed (Ref. 6871). Feeds mainly on shellfish (Ref. 26346). Oviparous (Ref. 50449). Eggs are encased in horny shells (Ref. 205). Flesh is of good eating quality. Males have a small, club-like protuberance on the head and also long copulation organs near the pelvic fins (Ref. 557).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Migrates into large estuaries and inshore bays in the spring to breed (Ref. 6871). Oviparous, two egg cases (Ref. 26346) are laid on sandy or muddy bottoms and take up to 8 months to hatch (Ref. 6871). Embryos feed solely on yolk (Ref. 50449).Young hatch at about 15 cm (Ref. 26346).

Main reference Upload your references | References | Coordinator | Collaborators

Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)

IUCN Red List Status (Ref. 115185)

Least Concern (LC)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00417 (0.00159 - 0.01095), b=3.12 (2.89 - 3.35), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic Level (Ref. 69278): 3.6 ±0.29 se; Based on food items.

Resilience (Ref. 69278): Low, minimum population doubling time 4.5 - 14 years (K=0.06-0.26; tm=2-6; Fec=2).

Vulnerability (Ref. 59153): Very high vulnerability (75 of 100) .

Price category (Ref. 80766): High.

Callorhinchus milii Bory de Saint-Vincent, 1823