Английская Википедия:Glass knifefish

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Шаблон:Short description Шаблон:Automatic Taxobox

Glass knifefishes are fishes in the family Sternopygidae in the order Gymnotiformes. Species are also known as rattail knifefishes.[1]

These fishes inhabit freshwater streams and rivers in Panama and South America.[1] Many species are specialized for life in the deep (more than Шаблон:Convert) swiftly moving waters of large river channels, like that of the Amazon and its major tributaries[2] where they have been observed swimming vertically.[3] Sternopygus species inhabit both streams and rivers.[4]

Many species are highly compressed laterally and translucent in life.[4] These fish have villiform (brush-like) teeth on the upper and lower jaws. The snout is relatively short. The eyes are relatively large, with a diameter equal to or greater than the distance between nares. The anal fin originates at the isthmus (the strip of flesh on the ventral surface between the gill covers). The maximum length is Шаблон:Convert in Sternopygus macrurus.

Eigenmannia vicentespelaea is the only cave-dwelling gymnotiform. Humboldtichthys kirschbaumi (formerly genus Ellisella) from Upper Miocene of Bolivia is the only fossil gymnotiform.[1]

These fish have a tone-like electric organ discharge (EOD) that occurs monophasically.

Some of these species are aquarium fishes.

Genera

There are 30 living species of glass knifefish, grouped into six genera:[5]

References

Шаблон:Reflist

Further reading

  • Albert, J.S. 2003. Family Sternopygidae. Pp 493–497 in R.E. Reis, S.O. Kullander & C.J. Ferraris, Jr. (eds). Checklist of the Freshwater Fishes of South and Central America. Edipucrs, Porto Alegre, 735p.
  • Шаблон:Aut; Шаблон:Aut; Шаблон:Aut 2011: A new genus and species of neotropical electric fish, Japigny kirschbaum (Gymnotiformes: Sternopygidae), from French Guiana. Cybium, 35(1): 47–53. Шаблон:ISSN abstract only seen

Шаблон:Wikispecies

Шаблон:Taxonbar

Шаблон:Gymnotiformes-stub

  1. 1,0 1,1 1,2 Шаблон:Cite book
  2. Crampton, W.G.R., Hulen, K., & Albert, J.S. (2004). "Sternopygus branco, a new species of Neotropical electric fish (Gymnotiformes: Sternopygidae) from the lowland Amazon basin, with descriptions of ecology and electric organ discharges." Copeia 2004(2): 244-258.
  3. Шаблон:Cite video
  4. 4,0 4,1 Шаблон:FishBase family
  5. Шаблон:FishBase family