Orange-striped emperor


  • In Japan, small individuals dwell in seagrass beds, and mainly feed on small crustaceans.
  • Often recorded singly.
  • Can live to at least 13 years old.
  • Exhibits non-functional protogynous hermaphroditism (sex change from female to male) or functional gonochorism (does not change sex), in which juveniles are female, and at a certain age or size, they can change sex to male or remain female. Once females reach adulthood, they do not change sex to male.
  • Most females and males mature at around 4 years old or 23 cm (Fork Length) and 3 years old or 20 cm (Fork Length) respectively.


  • Body pale grey, olive or light brown to dark brown. Paler ventrally.
  • A yellow-orange stripe runs from pectoral fin base to caudal peduncle with two faint yellow-orange stripes above and below it.
  • Body silvery with a mottled yellowish-brown pattern.
  • A dark blotch near the front of the body, between the lateral line and pectoral fin.

Common Name: Orange-striped emperor

Family Common Name: Emperors

Scientific Name: Lethrinus obsoletus___(Forsskål, 1775)

Maximum Length: 60 cm (Total Length)