Discopyge

Discopyge is a genus of rays in the family Narcinidae, commonly known as numbfishes or electric rays. These rays are characterized by their circular or disc-shaped pectoral fins that extend forward around the snout, creating a distinct "disc" appearance. Discopyge rays are endemic to the southwestern Atlantic Ocean, specifically found off the coasts of Argentina, Uruguay, and southern Brazil. They are typically small in size, with a maximum disc width usually less than 30 centimeters.

These rays possess electric organs located in their pectoral fins, which they use to stun prey or for defense against predators. While the electric discharge is not generally considered dangerous to humans, it can deliver a noticeable shock.

Discopyge rays are generally found in shallow coastal waters, often burying themselves in the sandy or muddy seabed. Their diet consists primarily of small invertebrates. Due to their limited distribution and potential susceptibility to habitat degradation and fishing activities, the conservation status of some Discopyge species has been a concern, although comprehensive data is sometimes lacking.