Long-tailed river stingray

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Long-tailed river stingray
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Subclass: Elasmobranchii
Order: Myliobatiformes
Family: Potamotrygonidae
Genus: Plesiotrygon
Species: P. iwamae
Binomial name
Plesiotrygon iwamae
Rosa, Castello & Thorson, 1987

The long-tailed river stingray or antenna ray, Plesiotrygon iwamae, is a species of freshwater stingray in the family Potamotrygonidae.

These animals have a long tail, small eyes, and few pectoral-fin radials.

They eat worms, crustaceans, mollusks, and small bottom fish (such as small catfish). They can detect electrical and chemical signals from prey in mud and sand.

The species was mentioned in 1987 by Hugo P. Castello from Museu de Zoologia, University of São Paulo. Examples were then found in other museums that had been given wrong names or identified incorrectly.

This fish does not appear often in the aquarium trade.

References[change | change source]

  • Ricardo S. Rosa; Hugo P. Castello; Thomas B. Thorson (1987). "Plesiotrygon iwamae, a New Genus and Species of Neotropical Freshwater Stingray (Chondrichthyes: Potamotrygonidae)". Copeia: 447–458.
  • Froese, Rainer, and Daniel Pauly, eds. (2011). "Plesiotrygon iwamae" in FishBase. June 2011 version.

Other websites[change | change source]