Plesiotrygon

Plesiotrygon
Plesiotrygon iwamae
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Myliobatiformes
Family: Potamotrygonidae
Genus: Plesiotrygon
R. de S. Rosa, Castello & Thorson, 1987
Type species
Plesiotrygon iwamae
R. de S. Rosa, Castello & Thorson 1987

Plesiotrygon, the antenna rays, is a small genus of freshwater stingrays in the family Potamotrygonidae endemic to the Amazon basin in South America.[1][2] They are found in large rivers and the lower part of their tributaries.[2] The maximum disc width is up to 58 cm (23 in), but both species are very long-tailed (tail length typically at least twice the disc width).[1][2]

Plesiotrygon are occasionally kept in aquariums and both species have been bred in captivity, but they is sensitive and the tail is easily damaged.[3][4]

Species

There are two recognized species:[1]

  • Plesiotrygon iwamae R. de S. Rosa, Castello & Thorson, 1987 (Long-tailed river stingray, antenna ray)
  • Plesiotrygon nana M. R. de Carvalho & Ragno, 2011 (Black-tailed antenna ray, dwarf antenna ray)

References

  1. 1 2 3 Froese, Rainer, and Daniel Pauly, eds. (2013). Species of Plesiotrygon in FishBase. August 2013 version.
  2. 1 2 3 De Carvalho, M.R. and M.P. Ragno (2011). An unusual, dwarf species of Neotropical freshwater stingray, Plesiotrygon nana sp. nov., from the upper and mid Amazon basin: the second species of Plesiotrygon (Chondrichthyes: Potamotrygonidae). Papéis Avulsos de Zoologia 51(7): 101-138.
  3. ↑ Reynolds; Hornbrook; Stettner; and Terrell (2017). Smith; Warmolts; Thoney; Hueter; Murray and Ezcurra, eds. Husbandry of freshwater stingrays. Elasmobranch Husbandry Manual II. Special Publication of the Ohio Biological Survey. pp. 99–112. ISBN 978-0-86727-166-9.
  4. ↑ "Plesiotrygon iwamae" (in German). Amazonas Rochen. Retrieved 30 October 2017.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.