Fourline Wrasse (Stethojulis trilineata)

Also known as Blue-ribbon Wrasse, Rainbowfish, Red Shoulder Rainbowfish, Sandreef Wrasse, Scarlet-banded Rainbowfish, Three Blueline Wrasse, Three Ribbon Wrasse, Threeline Rainbowfish, Three-lined Rainbowfish, Three-lined Ribbon Wrasse, Three-lined Wrasse

Description

Also known as Blue-ribbon Wrasse, Rainbowfish, Red Shoulder Rainbowfish, Sandreef Wrasse, Scarlet-banded Rainbowfish, Three Blueline Wrasse, Three Ribbon Wrasse, Threeline Rainbowfish, Three-lined Rainbowfish, Three-lined Ribbon Wrasse, Three-lined Wrasse.

Found singly, pairs or in loose schools over shallow clearwater exposed reefs along upper parts of drop-offs and reef crests.
They feed on benthic invertebrates.
Length - 14cm
Depth - 0-20m
Widespread Indo-West Pacific

Most reef fish seen by divers during the day are grazers, that cruise around just above the surface of the coral or snoop into crevices looking for algae, worms and small crustaceans.
Wrasses have small protruding teeth and graze the bottom taking in a variety of snails, worms, crabs, shrimps and eggs. Any hard coats or thick shells are then ground down by their pharyngeal jaws and the delicacies inside digested.
From juvenile to adult wrasses dramatically alter their colour and body shapes.
Wrasses are always on the go during the day, but are the first to go to bed and the last to rise.
Small wrasses dive below the sand to sleep and larger wrasses wedge themselves in crevasses. Ref: https://www.fishbase.se/summary/6622

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