[2] This freshwater ray has small eyes and a disc shaped roughly like a lily pad (the snout is slightly concave).

[3] It reaches up to 1.6 m (5.2 ft) in disc width and 110 kg (240 lb) in weight, making it one of the largest species in the family.

It mainly feeds on fish,[5] but also take invertebrates such as insects and crustaceans,[3] and it is a top predator in its habitat.

After a nine-month gestation, the female give birth to an average of two young with a disc width of about 16 cm (6.3 in).

Juveniles are found in relatively shallow waters at sandy beaches and in creeks.