Potamotrygon orbignyi

(CASTELNAU, 1855)


Smooth back river stingray
Classification: Elasmobranchii Rajiformes Potamotrygonidae

Reference of the original description
CASTELNAU, F.L. (1855)
Poissons. In: Animaux nouveaux or rares recueillis pendant l'expédition dans les parties centrales de l'Amérique du Sud, de Rio de Janeiro a Lima, et de Lima au Para; exécutée par ordre du gouvernement Français pendant les années 1843 a 1847 ... Part 7, Zoology, 2: i–xii + 1–112, Pls. 1–50.

Synonyms / new combinations and misspellings
Ellipesurus orbignyi, Ellipesurus reticulatus, Potamotrygon cf. dumerilii, Potamotrygon dumerili, Potamotrygon dumerilii, Potamotrygon reticulata, Potamotrygon reticulatus, Taeniura dumerili, Taeniura orbignyi, Trygon d'orbignyi, Trygon dorbignyi, Trygon dumerilii, Trygon orbignyi, Trygon reticulatus, Trygon (Taeniura) d'orbignyi, Trygon (Taeniura) dumerilii, Trygon (Taeniura) orbignyi

Types
Potamotrygon orbignyi
Holotype: MNHN: 2333;
Trygon reticulatus
Holotype: BMNH: 1870.3.10.1
Trygon (Taeniura) dumerilii
Holotype: MNHN: 2367;


Description :


Citation: Potamotrygon orbignyi (CASTELNAU, 1855): In: Database of modern sharks, rays and chimaeras, www.shark-references.com, World Wide Web electronic publication, Version 12/2018

Please send your images of "Potamotrygon orbignyi" to info@shark-references.com

Potamotrygon orbignyi, ANSP 199581, 145 mm MDW, field no. BR12-03 Brazil: Pará: rio Xingu, sand beach in eastern braid of river, ca. 44 km south-southwest Altamira. 3°36'29.3''S, 52°20'57.2''W, 8 Oct 2012, M. Sabaj et al.; © Mark Sabaj Pérez (iXingu Project, NSF DEB-1257813)
Common names
deu \(T\) Genetzer Süßwasserrochen, spa Raya dulceacuícola, fra \(T\) Laraie rivière, eng Anglespot river stingray, eng Roughback river stingray, eng Smooth back river stingray, por Arraia, por Raia

Distribution
South America: Widespread in Amazon and Orinoco River basins and in river systems in Suriname, Guyana and French Guiana. Source: www.gbif.org

Biology
Also feeds on plants [7721].

Size / Weight / Age
35.0 cm WD (male/unsexed; [7721]); 32.5 cm WD (female); max. published weight: 1,400 g [7721]; max. published weight: 2,000.0 g

Habitat
benthopelagic; freshwater; pH range: 6.8 - 7.5

Remarks
shark-references Species-ID=4960;

Parasites (arranged by Jürgen Pollerspöck)
Monogenea
  • Potamotrygonocotyle chisholmae DOMINGUES & MARQUES, 2007 [14549] [22565]
  • Potamotrygonocotyle rionegrense DOMINGUES, PANCERA & MARQUES, 2007 [14308]
  • Potamotrygonocotyle tsalickisi MAYES, BROOKS & THORSON, 1981 [14308] [22565]

Cestoda
Copepoda
  • Ergasilus trygonophilus DOMINGUES & MARQUES, 2010 [14716]

Actinopterygii
  • Vandellia beccarii DI CAPORIACCO, 1935 [23228]