Narcine brasiliensis, the Brazilian electric ray, or sometimes called the lesser numbfish, is a species of electric ray in the family Narcinidae. It is found mostly in the coastal waters of the southwest Atlantic from Brazil to northern Argentina, though smaller populations are found throughout the Caribbean and the South-Eastern American Coast.

Habitat The Brazilian Electric Ray is a "warm water species" and inhabits waters that are about 1 to 45m deep, mostly around waters that are 10 to 20 meters deep in the Summer and Autumn. They are common around sandy shorelines and sometimes coral reefs. When there's a temperature gradient between an inshore and an offshore they will habituate at the depths with the highest temperature. The density of this species had a higher concentration in temperatures that were greater than 20 °C (68 °F). They prefer shallow waters because that is usually the warmest part of the water. During the summer, they are abundant in coastal water with depths that go to 20 m (66 ft) and in the winter, they are still in that area but in a lower concentration and at deeper depths, about 40 to 50 m (130 to 160 ft), to avoid the cold temperatures. This behavior points toward a migration towards the south in the summer because of the warmer water with higher salinity. The salinity range that they prefer is from 24% to 36%.