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{{Short description|Genus of fishes}}
{{Taxobox_begin | color = pink | name = Sternoptyx}}
{{Automatic taxobox
{{Taxobox_section_image}}
| fossil_range = Early [[Oligocene]] to Present<br/>{{fossilrange|40|0}}
{{Taxobox_begin_placement | color = pink}}
| image = Sternoptyx diaphana1.jpg
{{Taxobox_regnum_entry | taxon = [[Animal]]ia}}
| image_caption = Diaphanous hatchetfish (''S. diaphana'')
{{Taxobox_phylum_entry | taxon = [[Chordata]]}}
| taxon = Sternoptyx
{{Taxobox_classis_entry | taxon = [[Actinopterygii]]}}
| authority = [[Johann Hermann|Hermann]], 1781
{{Taxobox_ordo_entry | taxon = [[Stomiiformes]]}}
}}
{{Taxobox_familia_entry | taxon = [[Sternoptychidae]]}}
{{Taxobox_subfamilia_entry | taxon = [[Sternoptychinae]]}}
{{Taxobox_genus_entry | taxon = '''Sternoptyx'''}}
{{Taxobox_section_subdivision | color = pink | plural_taxon = [[Species]]}}
&nbsp;''[[Sternoptyx diaphana|S. diaphana]]'' - Diaphanous hatchetfish<br/>
&nbsp;''[[Sternoptyx obscura|S. obscura]]''<br/>
&nbsp;''[[Sternoptyx pseudobscura|S. pseudobscura]]'' - Highlight hatchetfish<br/>
&nbsp;''[[Sternoptyx pseudodiaphana|S. pseudodiaphana]]''
{{Taxobox_end}}


'''''Sternoptyx''''' is an [[ocean]]ic [[ray-finned fish]] [[genus]] which belongs in the [[family (biology)|family]] [[Sternoptychidae]]. This is the [[type genus]] of the Sternoptychidae, as well as the [[marine hatchetfish]] [[subfamily]] Sternoptychinae.
{{stub}}

''Sternoptyx'' have silvery, high, and laterally compressed bodies and large, non-telescopic eyes.<ref name=Baird>{{Cite journal
| volume = 142
| pages = 1–128
| last = Baird
| first = R. C.
| title = The systematics, distribution, and zoogeography of the marine hatchetfishes (family Sternoptychidae)
| journal = Bulletin of the Museum of Comparative Zoology
| year = 1971
}}</ref> They are all relatively small, with even the largest species (''S. pseudobscura'' and ''S. pseudodiaphana'') not exceeding {{convert|60|mm}} [[standard length]].<ref name=fishbase/>

==Species==
There are currently four recognized species in this genus:<ref name=fishbase>{{FishBase genus | genus = Sternoptyx| month = February | year = 2012}}</ref>
* ''[[Sternoptyx diaphana]]'' <small>[[Johann Hermann|Hermann]], 1781</small> (Diaphanous hatchetfish)
* ''[[Sternoptyx obscura]]'' <small>[[Samuel Garman|Garman]], 1899</small>
* ''[[Sternoptyx pseudobscura]]'' <small>[[Ronald Clay Baird|R. C. Baird]], 1971</small> (Highlight hatchetfish)
* ''[[Sternoptyx pseudodiaphana]]'' <small>[[Oksana Dmitrievna Borodulina|Borodulina]], 1977</small> (False oblique hatchetfish)

[[Fossil]]s of this genus show that they have existed at least since the [[Early Oligocene]], about 30 [[million years ago]].<ref>{{aut|Sepkoski, Jack}} (2002): [''Sternoptyx'']. ''In:'' A compendium of fossil marine animal genera. ''Bulletins of American Paleontology'' '''364''': 560. [http://strata.geology.wisc.edu/jack/showgenera.php?taxon=611&rank=class HTML database excerpt]</ref>

==References==
{{Reflist}}

{{Taxonbar|from=Q916630}}

[[Category:Sternoptychidae]]
[[Category:Extant Rupelian first appearances]]
[[Category:Ray-finned fish genera]]
[[Category:Taxa named by Johann Hermann]]
[[Category:Rupelian genus first appearances]]


{{Stomiiformes-stub}}

Latest revision as of 02:39, 6 March 2021

Sternoptyx
Temporal range: Early Oligocene to Present
40–0 Ma
Diaphanous hatchetfish (S. diaphana)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Stomiiformes
Family: Sternoptychidae
Subfamily: Sternoptychinae
Genus: Sternoptyx
Hermann, 1781

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

[edit]

There are currently four recognized species in this genus:[2]

Fossils of this genus show that they have existed at least since the Early Oligocene, about 30 million years ago.[3]

References

[edit]
  1. ^ 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.
  2. ^ a b Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Sternoptyx". FishBase. February 2012 version.
  3. ^ Sepkoski, Jack (2002): [Sternoptyx]. In: A compendium of fossil marine animal genera. Bulletins of American Paleontology 364: 560. HTML database excerpt