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Redbelly yellowtail fusilier

Caesio cuning

Redbelly yellowtail fusilier
Photo by portioid · CC BY

About

The redbelly yellowtail fusilier is a schooling reef fish that grows up to 60 cm long, often seen streaming over reefs in loose midwater groups.

Also known as: red-bellied fusilier, robust fusilier, yellow-tail fusilier, yellowtail fusilier, red-belly fusilier, fusilier, yellowtail, giant fusilier, yellow-tail fusilier, yellowtail fusilier, deep-bodied fusilier, robust fusilier, red-bellied fusilier, yellow-tail

Length
60 cm
Depth
up to 60 m

How to tell it apart

Several fusiliers school together and look alike at a glance. This species has no black markings on its tail fin, unlike some relatives; instead, look for a small black patch at the base of the pectoral fin, near where the fin meets the body.

Appearance

This fish has a deep, flattened body. The rear of its back, its tail fin, and the top of the base of the tail are yellow, while the rest of the upper body is greyish blue. The lower flanks and belly are white to pinkish, and the pectoral, pelvic, and anal fins are white to pink as well. The dorsal fin, the fin along its back, is greyish blue at the front and yellow at the rear.

Habitat

This species lives in coastal waters over rocky and coral reefs, from about 1 to 60 m deep. It often gathers in silty areas where the water is murky, rather than only on clear reef fronts.

Did you know?

This fish is considered the most ancestral living species in its family, the fusiliers, making it something of a living link to the group's early evolutionary history.

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