Apogon marquesensis Greenfield 2001

Differs from other members of the A. erythrinus complex by having the following characteristics: scattered dark chromatophores on the caudal peduncle extending anteriorly as a band from caudal fin base at least to a vertical from ends of dorsal and anal fin rays; from A. erythrinus by having a shorter second dorsal fin spine not reaching base of third ray of second dorsal fin when depressed; from A. indicus by usually having 14 versus 13 pectoral fin rays; from A. susanae by having pigment on the dorsal surface of the caudal peduncle and on the base of the second dorsal fin; second dorsal fin spine of A. marquesensis usually longer than in specimens of A. indicus and A. susanae (Ref. 40822).

Mouthbrooders (Ref. 240). Distinct pairing during courtship and spawning (Ref. 205).

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Analspines: 2; Analsoft rays: 8