Cirripectes obscurus, lives in dark holes in the surf zone and is therefore rarely observed. This large species is purplish-brown with white speckles and irregular vertical bands, while the back and tail are dark brown with scattered white dots. Nuptial males have a vivid orange head and can reach up to eight inches in length. This species reaches a length of TL.
Cirripectes obscurus is endemic to the Hawaiian Islands, although one putativespecimen has been collected in the Austral Islands. This species lives on shallow reefs and lagoons at depths ranging from 3 to 20 feet. Cirripectes obscurus, lives in dark holes in the surf zone and is therefore rarely observed.