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Holocephali (chimaeras) > Chimaeriformes (Chimaeras) > Chimaeridae (Shortnose chimaeras or ratfishes)
Etymology: Hydrolagus: Greek, hydr = water + Greek, lagos = hare (Ref. 45335). More on author: de Buen.

Environment / Climate / Range Ecology

Marine; demersal; depth range 590 - 1160 m (Ref. 97389). Subtropical, preferred ?

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

Eastern Pacific: from the central coast of Mexico, Costa Rica, Peru and Chile.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 63.9 cm TL male/unsexed; (Ref. 97389); 58.1 cm TL (female)

Short description Morphology | Morphometrics

This species is distinguished by the following set of characters: slender body; short and bluntly rounded snout; relatively short head (HDL 24.2-24.5% BDL); relatively large eyes (EYL 30.9-34.2% HDL); oral and preopercular lateral line canals sharing a short common branch from the infraorbital canal; relatively large pectoral fins (P1A 36.5-40.8% BDL), extending posterior to the insertion of pelvic fins; trunk's lateral line canal without sinusoidal undulations; the anterior and posterior regions of second dorsal fin considerably taller than middle region; no anal fin; tail region elongate and slender (PCA 58.3-59.9% BDL); caudal-fin axis horizontal with the fin nearly symmetrical, epaxial and hypaxial lobes equal sized; coloration uniform brown across entire body, no white markings and bluish fins (Ref. 97389).

Oviparous (Ref. 205). Eggs are encased in horny shells (Ref. 205).

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

Oviparous (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Angulo, A., M.I. López, W.A. Bussing and A. Murase, 2014. Records of chimaeroid fishes (Holocephali: Chimaeriformes) from the Pacific coast of Costa Rica, with the description of a new species of Chimera (Chimaeridae) from the eastern Pacific Ocean. Zootaxa 3861(6):554-574. (Ref. 97389)

IUCN Red List Status (Ref. 115185)

Data deficient (DD)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00316 (0.00128 - 0.00780), b=3.10 (2.89 - 3.31), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic Level (Ref. 69278): 3.7 ±0.6 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278): Low, minimum population doubling time 4.5 - 14 years (Assuming Fec <100).

Vulnerability (Ref. 59153): Moderate vulnerability (41 of 100) .

Entered by Garilao, Cristina V.

Modified by Capuli, Estelita Emily

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Hydrolagus macrophthalmus de Buen, 1959