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Teleostei (teleosts) > Ophidiiformes (Cusk eels) > Bythitidae (Livebearing brotulas)
Etymology: Pseudonus: Greek, pseudes = false + Greek, onos = hake.
More on author: Garman.

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

Marine; bathydemersal; depth range 915 - 1620 m (Ref. 34024). Deep-water

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

Eastern Central Pacific: Gulf of Panama, off Ecuador and northern Peru, Galapagos Is.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 12.1 cm SL male/unsexed; (Ref. 86869)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 101 - 119; Anal soft rays: 74 - 85; Vertebrae: 61 - 63. This species is distinguished by the following characters: D 101-119; A 74-85; vertebrae 61-63; pelvic fin absent (Ref. 86869).

Rare species (Ref. 34024).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Nielsen, J.G., 2011. Revision of the bathyal fish genus Pseudonus (Teleostei, Bythitidae); P. squamiceps a senior synonym of P. platycephalus, new to Australian waters. Zootaxa 2867:59-66. (Ref. 86869)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 16 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

More information

Trophic ecology
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Ecology
Ecology

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Length-frequencies
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Life cycle
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Distribution
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Anatomy
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Brains
Otoliths

Physiology
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Oxygen consumptions
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Visual pigment(s)
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Estimates based on models

Preferred temperature (Ref. 123201): 3.6 - 4.3, mean 4.1 °C (based on 19 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00457 (0.00179 - 0.01169), b=3.10 (2.87 - 3.33), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.4 ±0.5 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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