Amphiprion perideraion are typically pink to pinkish orange in color. Fins are pale to transparent. They have a very distinct white dorsal stripe extending from the head to the caudal tail. A second, vertical, stripe is observed between the head and the rest of the body. Amphiprion perideraion have 9 or 10 well-developed dorsal spines and 2 anal spines. They have 16 or 17 dorsal soft rays and 12 or 13 anal soft rays. Likewise, they have highly developed pharyngeal teeth and a premaxilla with an ascending process, resulting in very effective suction feeding.
They reach a maximum length of 10 cm (Lieske and Myers, 1994; Fautin and Allen, 1992).
Similar species include A. nigripes, A. leucokranos, A. sandaracinos and A. sandaracinos. Amphiprion nigripes can be distinguished by a black belly, pelvic area and anal fins and a more reddish color. Amphiprion leucokranos have much wider and broader stripes which don't extend the full lenth of the body. The remaining two species lack the white head bar present in A. perideraion.
Females are slightly longer than males at 5.5 cm (compared to 4.6 cm) at maturity.
Range length: 10 (high) cm.
Average length: 4.6-5.5 cm.
Other Physical Features: ectothermic ; bilateral symmetry
Sexual Dimorphism: female larger