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Teleostei (teleosts) > Stomiiformes (Lightfishes and dragonfishes) > Stomiidae (Barbeled dragonfishes) > Malacosteinae
Etymology: Photostomias: Greek, photos = light + greek, stoma = mouth (Ref. 45335).
More on author: Alcock.

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

Marine; bathypelagic; depth range 141 - 533 m (Ref. 75669). Subtropical

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Circumtropicam: Subtropical and tropical waters of the eastern North Atlantic and throughout the South Atlantic to 23°53'S, rare in the western North Atlantic; Arabian Sea, Bay of Bengal, Indo-Pacific, central North Pacific.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 15.4 cm SL male/unsexed; (Ref. 75669)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 22 - 26; Anal soft rays: 26 - 30; Vertebrae: 55 - 57. This species is distinguished by having 3 pairs of basibranchial tooth patches; D 22-26, A 26-30, the sum of dorsal- and anal-fin rays 49-55; male postorbital organ length large, specimens greater than 6.0 cm, 72.1-197.2% fleshy orbit, 16.7-46.6% JL; anterior orbital organ length large, specimens greater than 6.0 cm, 9.2-37.8% fleshy orbit, 2.1-9.6% JL (Ref. 75669).

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

Main reference Upload your references | References | Coordinator | Collaborators

Kenaley, C.P. and K.E. Hartel, 2005. A revision of Atlantic species of Photostomias (Teleostei: Stomiidae: Malacosteinae), with a description of a new species. Ichthyol. Res. 52(3):251-263. (Ref. 75669)

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

Least Concern (LC) ; Date assessed: 01 July 2014

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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Ecology
Ecology

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Length-weight rel.
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Life cycle
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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 11.6 - 20.1, mean 15.4 °C (based on 120 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00407 (0.00157 - 0.01056), b=3.10 (2.88 - 3.32), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.0 ±0.7 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).

Photostomias atrox (Alcock, 1890)