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Teleostei (teleosts) > Ophidiiformes (Cusk eels) > Ophidiidae (Cusk-eels) > Neobythitinae
Etymology: Penopus: Greek, penia, -as, penomai = poverty + Greek, pous = feet.
More on author: Vaillant.

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

Marine; bathydemersal; depth range 960 - 3535 m (Ref. 34024). Deep-water

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Western Atlantic: from 38°29'030''N, 70°57'W (holotype of P. macdonaldi) southwards through the Gulf of Mexico to 22°45.7'S, 40°19.6'W. East Atlantic: from 34°28'N, 7°43'W southwards through the Gulf of Guinea to 36°06'S, 19°33'E.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 35.0 cm TL male/unsexed; (Ref. 4103)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 135 - 158; Anal spines: 0; Anal soft rays: 106 - 122; Vertebrae: 77 - 83. Penopus microphthalmus differs from P. japonicus by the following characters: has a higher number of dorsal, 135-158 (vs. 117) and anal, 106-122 (vs. 89) fin rays; lower number of preopercular spines, 4-7 (vs. 9); indistinct spine behind the posterior nostril (vs. distinct, 1% SL); by the bigger horizontal diameter of the eye 1.1-1.6% SL (vs. 0.8); and in having an almost fully scaled head (vs. squamation of the head restricted to the middle part of the preopercle) (Ref. 87601).

Rare species (Ref. 34024). Oviparous, with oval pelagic eggs floating in a gelatinous mass (Ref. 205).

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

Main reference Upload your references | References | Coordinator | Collaborators

Nielsen, J.G. and S. Ohashi, 2011. A new species of Penopus (Teleostei: Ophidiidae) from the Ryukyu Trench, the West Pacific, with remarks on Penopus microphthalmus. Ichthyol. Res. 58(3):232-237. (Ref. 87601)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 09 July 2014

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 2.2 - 5.1, mean 3.9 °C (based on 844 cells).

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

Bayesian length-weight: a=0.00110 (0.00040 - 0.00297), b=3.08 (2.85 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.6 ±0.6 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (25 of 100).

Penopus microphthalmus (Vaillant, 1888)