Lethrinus harak

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Lethrinus harak
Blackspot emperor Lethrinus harak (5810087139).jpg
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Lethrinidae
Genus: Lethrinus
Species: L. harak
Binomial name
Lethrinus harak
(Forsskål, 1775)[1]

Lethrinus azureus Valenciennes, 1830
Lethrinus bleekeri Klunzinger, 1884
Lethrinus bonhamensis Günther, 1874
Lethrinus johnii Castelnau, 1873
Lethrinus papuensis Alleyne & MacLeay, 1877
Lethrinus rhodopterus Bleeker, 1852
Sciaena harak Forsskål, 1775

Lethrinus harak, common names the thumbprint emperor and blackspot emperor,[2] is a species of emperor fish.[1]


This species is olive-green in colour, becoming paler toward the belly. It can grow to a maximum length of 50 cm but is commonly found at 30 cm. There is a characteristic large blotch on the sides. It is dark and elliptical, located directly under the lateral line. This blotch often has a yellow edge.[3]

There are occasionally pale blue dots around each nostril and bordering the lower rim of the eyes. The caudal fin is reddish or orange in colour. The pelvic, dorsal, and pectoral fins are all pinkish to white.[3]

The mouth is somewhat protractile with thick lips.[3]


Lethrinus harak has been recorded from East Africa to Samoa, as far north as the southern waters of Japan, down to the northeastern parts of Australia in the south. It is also known to live in the Red Sea.[3]


This fish lives in depths of up to 20 metres in areas with sandy bottoms, coral rubble, and in mangroves, inshore seagrass areas, in lagoons and channels. It is non-migratory and forms small schools or may be solitary.[3]


This species eats crustaceans, mollusks, polychaetes, echinoderms and small fishes.[3]


  1. ^ a b "WoRMS - World Register of Marine Species - Lethrinus harak (Forsskål, 1775)". Marinespecies.org. Retrieved 2014-05-26.
  2. ^ "Blackspot Emperor (Lethrinus harak) - Information on Blackspot Emperor - Encyclopedia of Life". Eol.org. Retrieved 2014-06-05.
  3. ^ a b c d e f https://web.archive.org/web/20150204081329/http://www.fishbase.org/summary/1851. Archived from the original on February 4, 2015. Retrieved June 5, 2014. Missing or empty |title= (help)