Distinctive Characters: Dorsal fin with 5 spines and 21 rays. Anal fin with 1 spine and 14-22 rays. Pelvic fins well separated. Colour: Spinous portion black with a deep red margin. A series of 8 short dusky bars on back, six of which are linked to black spots basically in soft dorsal fin. A series of 9 broad orange bars on lower side.
Blackflag sandperch habitat
The Blackflag Sandperch is found on open rubble/muddy substrates, close to coral reefs. It feeds on small invertebrates and fish. There is evidence to suggest that this fish is a protogynous hermaphrodite, with the two smallest paratypes being female and the larger three male (Randall 1984). This species is found to a depth of 50 m (P. Heemstra pers. comm. 2009).