Lethrinus harak

Thumbprint emperor LTK
Characteristic features:

Greyish green with large dark blotch below lateral line.


Up to 50 cm TL.


Indo–West Pacific, in tropical waters.


Soft and hard bottoms near reefs, to 20 m depth.


Feeds on polychaetes, crustaceans, molluscs, echinoderms and small fishes.

Indonesian fisheries:

Caught with shore seines, gill nets and handlines.

Similar species:

Lethrinus semicinctus
Blackblotch emperor

Lethrinus semicinctus

Lethrinus semicinctus differs in having inner surface of pectoral-fin base naked (vs. densely covered with scales) and numerous small dark blotches and a larger dark blotch on sides below dorsal-fin soft rays (vs. a singular, diffuse black blotch below mid dorsal fin).

Lethrinus variegatus
Slender emperor

Lethrinus variegatus

Lethrinus variegatus differs in having a slender body (vs. moderately deep); inner surface of pectoral fin base naked (vs. densely covered with scales) and no large black blotch on sides (vs. a large diffuse black blotch on sides).

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