Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

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 Maturity | Reproduction | Spawning | Eggs | Fecundity | 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: Version 2024-1)

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
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
Countries
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Occurrences
Introductions
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Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
Heritability

Human related
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Ciguatera cases
Stamps, coins, misc.

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Taxonomy
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References
References

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Internet sources

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=0.00447 (0.00172 - 0.01163), 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).

Pseudonus acutus Garman, 1899