Sio is a monotypic genus of fish in the family Melamphaidae, the ridgeheads. The only species is Sio nordenskjoldii, or Nordenskjold's bigscale.[2][3] It has a circumglobal distribution on the southern hemisphere at depths from 200 to 3,000 metres (660 to 9,840 ft).[1][4]

Sio
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Beryciformes
Family: Melamphaidae
Genus: Sio
Moss, 1962
Species:
S. nordenskjoldii
Binomial name
Sio nordenskjoldii
(Lönnberg, 1905)
Synonyms[1]

Melamphaes (Plectromus) nordenskjoldii Lönnberg, 1905

Etymology

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The genus names refers to the Scripps Institute of Oceanography, abbreviated as SIO.[4]

Description

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This species grows to a length of 12.3 centimetres (4.8 in) SL.[1][4]

Conservation

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There are no known threats to this species. It is not caught by commercial fisheries.[1]

References

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  1. ^ a b c d e Moore, J. (2019). "Sio nordenskjoldii". IUCN Red List of Threatened Species. 2019: e.T135432447A135579457. doi:10.2305/IUCN.UK.2019-2.RLTS.T135432447A135579457.en. Retrieved 19 January 2024.
  2. ^ Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Sio". FishBase. October 2023 version.
  3. ^ Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Sio". Catalog of Fishes. California Academy of Sciences. Retrieved 19 January 2024.
  4. ^ a b c Froese, Rainer; Pauly, Daniel (eds.). "Sio nordenskjoldii". FishBase. October 2023 version.