Tony Wu / Comet (Calloplesiops altivelis) an elegant, cryptic fish that possesses a false eye on its dorsal fin, probably to mislead predators, Lembeh Strait, North Sulawesi, Indonesia

David Fleetham / Comet / Marine betta (Calloplesiops altivelis) hiding on a reef, Philippines, Philippine Sea.

Joel Sartore / Photo Ark / Comet longfin (Calloplesiops altivelis) swimming through the frame, The Fish Store, Nebraska, Lincoln, USA.