Plesiotrygon
Genus of cartilaginous fishes
From Wikipedia, the free encyclopedia
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]
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| Plesiotrygon | |
|---|---|
| |
| Plesiotrygon iwamae | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Order: | Myliobatiformes |
| Family: | Potamotrygonidae |
| Subfamily: | Potamotrygoninae |
| 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)
