Sternoptyx: Difference between revisions
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[this is S. diaphana, use for the species article when it is made] |
[this is S. diaphana, use for the species article when it is made] |
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Revision as of 17:37, 31 August 2015
| Sternoptyx Temporal range: Early Oligocene to Present
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| Diaphanous Hatchetfish (S. diaphana) | |
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| Genus: | Sternoptyx Hermann, 1781
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Sternoptyx is an oceanic ray-finned fish genus which belongs in the family Sternoptychidae. This is the type genus of the Sternoptychidae, as well as the marine hatchetfish subfamily Sternoptychinae.
Sternoptyx have silvery, high, and laterally compressed bodies and large, non-telescopic eyes.[1] They are all relatively small, with even the largest species (S. pseudobscura and S. pseudodiaphana) not exceeding 60 millimetres (2.4 in) standard length.[2]
Species
There are currently four recognized species in this genus: [2]
- Sternoptyx diaphana Hermann, 1781 (Diaphanous Hatchetfish)
- Sternoptyx obscura Garman, 1899
- Sternoptyx pseudobscura R. C. Baird, 1971 (Highlight Hatchetfish)
- Sternoptyx pseudodiaphana Borodulina, 1977 (False Oblique Hatchetfish)
Fossils of this genus show that they have existed at least since the Early Oligocene, about 30 million years ago.[3]
References
- ^ Baird, R. C. (1971). "The systematics, distribution, and zoogeography of the marine hatchetfishes (family Sternoptychidae)". Bulletin of The Museum of Comparative Zoology. 142: 1–128.
- ^ a b Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Sternoptyx". FishBase. February 2012 version.
- ^ Sepkoski, Jack (2002): [Sternoptyx]. In: A compendium of fossil marine animal genera. Bulletin of American Paleontology 364: 560. HTML database excerpt
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