Loricariidae

Acestridium discus

Acestridium discus

Endemic to the Negro basin first described near Manaus

• Tropical
• Lower river
• Southern Hemisphere
• Regional distribution
• Freshwater fish
• South America
• Small
• Tropical fish

Acestridium discus is a species of freshwater ray-finned fish belonging to the family Loricariidae, the suckermouth armored catfishes, and the subfamily Hypoptopomatinae, the cascudinos. This catfish is endemic to Brazil where it occurs in the basin of the Rio Negro in the state of Amazonas. A. discus was first formally described in 1911 by the American ichthyologist John Diederich Haseman with its type locality given as Igarapé de Cachoeira Grande, near Manaus.