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Potamotrygon signata Garman, 1913 Parnaiba river stingray |
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| Arraia, Arraia amarela, Raia | ||
| Family: | Potamotrygonidae (River stingrays), subfamily: Potamotrygoninae | |||
| Max. size: | 30 cm WD (male/unsexed) | |||
| Environment: | benthopelagic; freshwater | |||
| Distribution: | South America: Parnaíba River basin. | |||
| Diagnosis: | ||||
| Biology: | ||||
| IUCN Red List Status: | Data deficient (DD); Date assessed: 24 June 2003 Ref. (130435) | |||
| Threat to humans: | harmless | |||
| Country info: | Known from the Parnaíba River basin (Ref. 36687). Type locality, Rio Poti, tributary of Rio Parnaíba; Parnaíba and São Gonçallo (Ref. 33021). | |||