Lethrinus olivaceus
| Lethrinus olivaceus | |
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| Lethrinus olivaceus | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Perciformes |
| Family: | Lethrinidae |
| Genus: | Lethrinus |
| Species: | L. olivaceus |
| Binomial name | |
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Lethrinus olivaceus Valenciennes 1830 |
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| Synonyms | |
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Lethrinus olivaceus, common name Longface emperor or Long-nosed emperor, is a species of bony fishes belonging to the family Lethrinidae.
Lethrinus olivaceus can reach a length of about 70–100 centimetres (28–39 in). This large lethrinid has a very long snout, with dark wavy streaks. The basic color of the body is olive-grayish, usually with various irregular darker blotches, but it can have different colour and pattern for a better camouflage. It has 10 dorsal spine, 9 dorsal soft rays, 3 anal spines and 8 anal soft rays. Juveniles show a more forked caudal fin. This species is very similar to Lethrinus microdon.
This species is widespread in Indo-West Pacific, from Red Sea and East Africa to Samoa and Ryukyu Islands.
It is a reef-associated species and it can be found in lagoons, in sandy coastal areas and in reef slopes, at depths of 1 to 185 m.
These very active and fast swimming fishes often occur in large schools, but adults are usually solitary. They are occasionally found in small schools with Lethrinus microdon. They feed mainly on crustaceans, cephalopods and fishes.
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