Lethrinus erythropterus

Longfin emperor LTY
Characteristic features:

Body reddish with two pale bars on caudal peduncle, fins dark red, red bar from eye to snout tip.


Up to 50 cm TL.


Indo–West Pacific, in tropical waters.


Coral reefs, to 25 m depth.


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

Indonesian fisheries:

Caught with handlines and traps.

Similar species:

Lethrinus erythracanthus
Yellowfin emperor

Lethrinus erythracanthus

Lethrinus erythracanthus differs in having lateral teeth conical or rounded (vs. distinct molars in adults); membranes between inner rays of pelvic fins usually densely populated with melanophores (vs. not densely populated); no markings on caudal peduncle (vs. 2 light bars on caudal peduncle often visible) and small orange spots on cheek (vs. no spots on cheek).

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