Claudio Contreras,Claudio Contreras / Long-beaked Coralfish (Chelmon rostratus) eye, Inanuran Island, Danajon Bank, Central Visayas, Philippines, April

Franco Banfi / Beaked coralfish (Chelmon rostratus) Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Franco Banfi / Beaked coralfish (Chelmon rostratus) Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Ingo Arndt / Copperband Butterflyfish (Chelmon rostratus), Philippines

Joel Sartore / Photo Ark / Banded longsnout butterflyfish (Chelmon rostratus) portrait, Nebraska Aquatic Supply. Captive, occurs in Indian and Paciifc Oceans.

Joel Sartore / Photo Ark / Banded longsnout butterflyfish (Chelmon rostratus) portrait, Nebraska Aquatic Supply. Captive, occurs in Indian and Paciifc Oceans.

Georgette Douwma / Yellow tropical reef fish composite image on black background, Falcula butterflyfish (Chaetodon falcula), Yellow boxfish (Ostracion cubicus), Golden butterflyfish (Chaetodon semilarvatus), Red Sea clo...

Georgette Douwma / Yellow tropical reef fish composite image on black background, Sailfin tang (Zebrasoma veliferum) juvenile, Pajama cardinalfish (Sphaeramia nematoptera), Three-spot angelfish (Apolemichthys trimaculat...

Georgette Douwma / Banded longsnout butterflyfish (Chelmon rostratus). Derawan Islands, East Kalimantan, Indonesia.