Polypterus senegalus

Polypterus senegalus, commonly known as the Senegal bichir, gray bichir or Cuvier's bichir, is an African species of ray-finned fish in the bichir family, Polypteridae. It is a typical example of polypterid fishes, as most of its defining physical features are common across the genus, such as its ancient, lungfish- or arowana-like appearance, the ability to breathe atmospheric oxygen, and its armor-like scales. These factors have influenced the species' popularity in captivity, and it is commonly kept by aquarists and other hobbyists.

P. senegalus is sometimes, confusingly, called the "dinosaur eel" or "dragon fish", among other misnomers; however, the bichir is not an eel, nor is it a reptile or dinosaur.