Longface emperor

Lethrinus olivaceus

''Lethrinus olivaceus'', common name Longface emperor or Long-nosed emperor, is a species of bony fishes belonging to the family Lethrinidae.
Long Nose Emperor - Lethrinus olivaceus 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. It has 10 dorsal spine, 9 dorsal soft rays, 3 anal spines and 8 anal soft rays. This fish feeds mainly on crustaceans, cephalopods and fishes. Geotagged,Lethrinus olivaceus,Long Nose Emperor,Philippines,Spring,cebu,malapascua

Appearance

''Lethrinus olivaceus'' can reach a length of about 70–100 centimetres. 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''.
Changing colours This are Long-nosed Emperor - Lethrinus olivaceus, they have the ability to change their colours as they swim between the water column and the reef, probably to make them less visible to their prey or even predators.
In the picture, the fish on the left is swimming towards the reef, hence it takes on the markings on the body.  The fist on the right is even-coloured of silverish as it moves to the water column. Cebu,Fish,Geotagged,Lethrinus olivaceus,Longface emperor,Malapascua,Philippines,Spring

Distribution

This species is widespread in Indo-West Pacific, from Red Sea and East Africa to Samoa and Ryukyu Islands.
Longface Emperor - Lethrinus olivaceus  Fish,Geotagged,Lethrinus olivaceus,Longface emperor,Mabul,Malaysia,Spring

Behavior

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.

Habitat

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.

References:

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Taxonomy
KingdomAnimalia
DivisionChordata
ClassActinopterygii
OrderPerciformes
FamilyLethrinidae
GenusLethrinus
SpeciesL. olivaceus