David Fleetham / Pyramid butterflyfish (Hemitaurichthys polylepis), with dorsal fins flared, line up for the attention of an endemic Hawaiian cleaner wrasse (Labroides phthirophagus), Hawaii, Pacific Ocean.
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David Fleetham / Pyramid butterflyfish (Hemitaurichthys polylepis) with miscellaneous reef fish above the hard coral reef, Molokini Marine Preserve, Maui, Hawaii, Pacific Ocean.