Chaetodontidae

Atoll butterflyfish

Chaetodon mertensii

Chaetodontid Fish from Asian Waters

• Tropical
• Regional distribution
• Marine fish
• Indian Ocean
• Pacific Ocean
• Southeast Asia
• Deep-bodied
• Compressed cross-section
• Small
• Tropical fish

Chaetodon mertensii, the atoll butterflyfish, yellowback butterflyfish or Merten's butterflyfish, is a species of marine ray finned fish, a butterflyfish belonging to the family Chaetodontidae. It is found in the western Pacific Ocean.