Heliotrygon

Genus of cartilaginous fishes

Heliotrygon is a genus of freshwater stingrays in the family Potamotrygonidae. The genus is endemic to the Amazon basin in South America. Despite being discovered decades earlier, the genus was only scientifically described in 2011. They mainly live in deep river channels, but approach the shore at night to feed on fish.

This keyword could refer to multiple things. Here are some suggestions: