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 | |
|---|---|
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| Plesiotrygon iwamae | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| 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
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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 edit
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 edit
- ^ a b c Froese, Rainer and Pauly, Daniel, eds. (2013). Species of Plesiotrygon in FishBase. August 2013 version.
- ^ a b c 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.
- ^ 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.
- ^ "Plesiotrygon iwamae" (in German). Amazonas Rochen. Retrieved 30 October 2017.
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