Chaetodontidae

longsnout butterflyfish

Prognathodes aculeatus

Ten Centimeters Chaetodontid Fish from Mexican Waters

• Tropical
• Regional distribution
• Marine fish
• Atlantic Ocean
• Central America and the Caribbean
• North America
• South America
• Deep-bodied
• Compressed cross-section
• Small
• Tropical fish

Prognathodes aculeatus, or the longsnout butterflyfish, is a species of butterflyfish found in tropical West Atlantic waters. It is also known as the butterbun, the Caribbean longsnout butterflyfish or Poey's butterflyfish. This species may often be confused with the banded longsnout butterflyfish (Chelmon rostratus).