Hanauma Bay, Oahu, 10 feet

Makapu'u, Oahu, 6 feet

Makapu'u, Oahu, 6 feet

Solitary territorial species uncommon along rocky shores exposed to breaking waves where they feed upon algae.  Charcoal or dark brown with black-edged scales, two light vertical bars, iridescent spots on the cheek, and pale iris crossed by a diagonal black bar.  Juveniles inhabit tidepools, brown with two white bars and a large black spot at the rear base of the dorsal fin.  The Hawaiian Gregory has a yellow iris.  Attains 5 inches.  Endemic to Hawai'i.