The clown coris (Coris aygula) is a species of wrass native to the Indian Ocean and the western Pacific Ocean, belonging to the Actinopterygii class, to the order Perciformes, Labridae family.This species can reach a total length of 70-120 cm. During the life of the fish, the appearance varies considerably: the juveniles are predominantly white or pink and have a pointed profile, covered with small dark spots. Coris aygula intotheblue.it
The dorsal and anal fins are low and long, mostly black with a white border. The caudal fin is of the same colors and has a rounded margin. On the dorsal fin there are black ocelli edged in white, and on the back two large semicircular orange spots.
The adult males, instead, have an almost uniformly coloring of a very dark bluish-green, with a lighter vertical band, quite wide and sometimes whitish, approximately in the middle of the body.
With growth the caudal fin takes on a different shape, with the filamentous rays, while the pelvic fins become longer. The dorsal fins and the anal fin are uniformly gray, usually of the same tonality of the body, without spots, even if the first rays of the dorsal fin can sometimes be lengthened. Adult males also have a hump more or less accentuated on the forehead. It is a fairly long-lived species, which can reach the age of 16 years.
Coris aygula is an inhabitant of coral reef where they prefer areas of sand or rubble at depths from 2 to 30 m. They are generally solitary as adults, while juveniles can often be found in tide pools. This species can be found from the Red Sea and the African coast eastward to the Line Islands and Ducie island and from southern Japan to Lord Howe Island.
(extract from Wikipedia)