Plesiotrygon Explained
Plesiotrygon, the antenna rays, is a small genus of freshwater stingrays in the family Potamotrygonidae endemic to the Amazon basin in South America.[1] They are found in large rivers and the lower part of their tributaries.[1] The maximum disc width is up to 58abbr=onNaNabbr=on, but both species are very long-tailed (tail length typically at least twice the disc width).[1]
Plesiotrygon are occasionally kept in aquariums and both species have been bred in captivity, but they are sensitive and the tail is easily damaged.[2] [3]
Species
There are two recognized species:
- 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)
Notes and References
- 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.
- Book: Jennifer Reynolds . Erica Hornbrook . George Stettner . Richard Terrell . Husbandry of freshwater stingrays . Mark Smith . Doug Warmolts . Dennis Thoney . Robert Hueter . Michael Murray . Juan Ezcurra . 2017 . Elasmobranch Husbandry Manual II . Ohio Biological Survey . 99–112 . 978-0-86727-166-9 .
- Web site: Plesiotrygon iwamae . Amazonas Rochen . DE . 30 October 2017.