There were many species of colorful butterflyfish that I had not seen before.

In addition to these spot-banded butterflyfish (Chaetodon punctatofasciatus),

 there were saddled, Pacific double-saddled, teardrop, black-backed, scrawled and white collar butterflyfish.

(Ngemelis Wall, Palau, Micronesia)

fish; butterflyfish; spot-banded butterflyfish; spotted belly butterflyfish; Chordata; sC Osteichthyes; Actinopterygii; sC Neopterygii; iC Teleostei; sO Acanthopterygii; Perciformes; sO Percoidei; Chaetodontidae; Chaetodon punctatofasciatus