Plesiotrygon

Life-forms

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Classis: Chondrichthyes
Subclassis: Elasmobranchii
Infraclassis: Euselachii
Division/Cohort: Neoselachii
Subdivision/Subcohort: Batoidea
Superordo: Batomorphii
Ordo: Myliobatiformes
Subordo: Myliobatoidei
Superfamilia: Dasyatoidea

Familia: Potamotrygonidae
Genus: Plesiotrygon
Species: P. iwamae – P. nana
Name

Plesiotrygon R. de S. Rosa, Castello & Thorson, 1987

Type species: Plesiotrygon iwamae Rosa, Castello & Thorson 1987. Type by original designation (also monotypic).
References

Rosa, R.S. , H.P. Castello & T. B. Thorson 1987: Plesiotrygon iwamae, a new genus and species of neotropical freshwater stingray (Chondrichthyes: Potamotrygonidae). Copeia, 1987 (2): 447–458.
Lasso, C.A. , A. Acosta Santos & A. Agudelo Córdoba 2011: Primer registro de la raya látigo o antena Plesiotrygon iwamae Rosa, Castello y Thorson 1987 (Chondrichthys: Potamotrygonidae) para Colombia. Biota Colombiana, 11 (1-2): 173–175.

Vernacular names
English: River stingrays

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 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

Froese, Rainer and Pauly, Daniel, eds. (2013). Species of Plesiotrygon in FishBase. August 2013 version.
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.