Apogon marquesensis Greenfield, 2001

Family:  Apogonidae (Cardinalfishes), subfamily: Apogoninae
Max. size:  4.57 cm SL (male/unsexed)
Environment:  demersal; marine; depth range 0 - 12 m
Distribution:  Eastern Central Pacific: endemic to the Marquesa Islands.
Diagnosis:  Dorsal spines (total): 7-7; Dorsal soft rays (total): 9-9; Anal spines: 2-2; Anal soft rays: 8-8. 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).
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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