Plesiotrygon

<i>Plesiotrygon</i>

Plesiotrygon

Genus of cartilaginous fishes

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]

Quick Facts Plesiotrygon, Scientific classification ...

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. [1]
    Froese, Rainer and Pauly, Daniel, eds. (2013). Species of Plesiotrygon in FishBase. August 2013 version.
  2. [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. [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. [4]
    "Plesiotrygon iwamae" (in German). Amazonas Rochen. Retrieved 30 October 2017.


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