Plesiotrygon

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
Plesiotrygon iwamae
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Superorder: Batoidea
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 are occasionally kept in aquariums and both species have been bred in captivity, but they are 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. Froese, Rainer and Pauly, Daniel, eds. (2013). Species of Plesiotrygon in FishBase. August 2013 version.
  2. 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. Jennifer Reynolds; Erica Hornbrook; George Stettner; Richard Terrell (2017). "Husbandry of freshwater stingrays". In Mark Smith; Doug Warmolts; Dennis Thoney; Robert Hueter; Michael Murray; Juan Ezcurra (eds.). Elasmobranch Husbandry Manual II. 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.