Abudefduf septemfasciatus is similar to A. sordidus, but lacks the black spot on the base of its caudal fin. The species' name is derived from the seven stripes on its body.
Details
§ 01
size
Max. 16 cm
color
Yellowish brown with dark cross bands. Spinous dorsal fin with dark edges. Pectoral fin pale with a black spot at the base. Caudal and pelvic fin greyish.
This species inhabits rocky shorelines that are exposed to the force of waves and shallow reefs that reach up to 3 meters in depth. Its primary source of food is algae.
distinctive characters
This fish has a dorsal fin with 13 spines and 12-14 rays, an anal fin with 2 spines and 11-13 rays, 17-19 pectoral rays, a body depth of 1.7-1.9 in standard length, a compressed body with large scales, an operculum and preoperculum that are scaled, opercles that are not serrated, and a lateral line that is not continuous.