Astronesthes cyclophotus
Astronesthes cyclophotus Regan and Trewavas, 1929
- order Stomiiformes
- Photichthyoidei
- family Stomiidae
- Astronesthinae
- genus Astronesthes Richardson, 1845
Overview
Biology
This taxon is a possible synonym of Astronesthes neopogon Regan & Trewavas 1929.
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Description
Serial photophores in lateral row (OA) 32–35, of which 17–20 behind pelvic-fin insertion; 55–57 photophores in ventral row to tail (IC); ventral row straight between pectoral fin bases. Barbel tip widened, flat. Dorsal-fin rays 13–16.
Color of head and body black; all known specimens small; pale patches unknown.
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Type Information
Type locality
Largest known specimen less than 30 mm.
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Synonymy
Data on Catalog of Fishes
View data on Catalog of Fishes here.
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Description
Morphology
Body not especieally elongate, its depth 4–8 times in SL. Enlarged teeth present in jaws as fangs; maxilla with a series of small, comb-like teeth pointing posteroventrally; gill argches bearing groups of short spines rather than rakers; postorbital light organ single. Dorsal-fin origin less than 60% SL, slignthly posterior to pelvic-fin insertion; dorsal adipose fin present.
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Size
Largest known specimen less than 30 mm.
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Ecology and Distribution
Distribution
In the eastern Atlantic between 26–33° and 21° and 23° W; in the western Atlantic between 30–32° N, between 48° and 58° W.
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Habitat
Mesopelagic, probably migrating to the epipelagic at night.
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References
Main Reference
Gibbs RH, Jr. 1984. Astronesthidae. In: Whitehead PJP, Bauchot M-L, Hureau J-C, Nielsen J, Tortonese E, editors. Fishes of the North-eastern Atlantic and the Mediterranean. Paris: UNESCO. p 325–335.
Rights holder(s): Kenaley, Christopher - Comment (0)