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Potamotrygon orbignyi (Castelnau, 1855) Smooth back river stingray |
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photo by
Landines, M. |
| Family: | Potamotrygonidae (River stingrays), subfamily: Potamotrygoninae | |||
| Max. size: | 35 cm WD (male/unsexed); 32.5 cm WD (female); max.weight: 1,400.0 g; max.weight: 2,000.0 g | |||
| Environment: | benthopelagic; freshwater; pH range: 6.80000019073486 - 7.5 | |||
| Distribution: | South America: Widespread in Amazon and Orinoco River basins and in river systems in Suriname, Guyana and French Guiana. | |||
| Diagnosis: | ||||
| Biology: | Occurs in stream swamps, floodplain lakes and artificial lagoons. Feeds mainly on insects and benthic crustaceans (Ref. 27749). | |||
| IUCN Red List Status: | Least Concern (LC); Date assessed: 24 June 2003 Ref. (130435) | |||
| Threat to humans: | harmless | |||