The smooth back river stingray is a freshwater species from the Amazon and Orinoco river basins. It has a nearly circular disc, smooth dorsal surface, and a long tail bearing a defensive spine. Adults typically reach 18–24 inches across and weigh up to 30 pounds. It is bottom-dwelling, often partially buried, and exhibits calm, reclusive behavior. This summary was AI generated
Water type
IUCN Status
Threat to humans
Source: Fishbase
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Smooth back river stingray
Lower Newport Bay
length · weight


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