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Holocephali (chimaeras) > Chimaeriformes (Chimaeras) > Chimaeridae (Shortnose chimaeras or ratfishes)
Etymology: Chimaera: Named for the mythological creature composed of parts of multiple animals, referring to their odd mix of characteristics (See ETYFish); argiloba: argos (Gr.), white; lobos (Gr.), rounded projection, referring to distinct white posterior margin of first dorsal fin (See ETYFish).
More on authors: Last, White & Pogonoski.

Issue
Close to Chimaera phantasma Jordan & Snyder, 1900. Specimens collected off New Caledonia and Indonesia could be conspecific (Ref. 76966).

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; bathydemersal; depth range 370 - 520 m (Ref. 76966). Deep-water; 18°S - 29°S, 113°E - 119°E (Ref. 76966)

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

Eastern Indian Ocean: off Northwest Australia. Questionably off Indonesia and New Caledonia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 91.2 cm TL male/unsexed; (Ref. 76966); 87.7 cm TL (female)

Short description Identification keys | Morphology | Morphometrics

This species is distinguished from its congeners by the following characters: snout moderately long; skin relatively thick, non-deciduous; color uniformly silvery greyish dorsally and laterally, paler ventrally; preopercular and oral lateral line canals usually not sharing a common branch; long dorsal spine, longer than first dorsal fin; structure of the CO1 gene (Ref. 76966).

Caught over the upper continental slope (Ref. 76966).

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

Main reference Upload your references | References | Coordinator | Collaborators

Last, P.R., W.T. White and J.J. Pogonoski, 2008. Chimaera argiloba sp. nov., a new species of chimaerid (Chimaeriformes: Chimaeridae) from Northern Australia. In Last, P.R., White, W.T. & Pogonoski, J.J. (eds.): Descriptions of New Australian Chondrichthyans. CSIRO Marine and Atmospheric Research Paper no. 22. (Ref. 76966)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 18 February 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 4.3 - 12.8, mean 6.6 °C (based on 14 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00331 (0.00137 - 0.00798), b=3.07 (2.86 - 3.28), 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. 120179): Low, minimum population doubling time 4.5 - 14 years (Deepwater species with few large eggs.).

Fishing Vulnerability (Ref. 59153): High vulnerability (56 of 100).

Chimaera argiloba Last, White & Pogonoski, 2008