Blue or rippled triggerfish
(Bloch & J. G. Schneider, 1801)
Pseudobalistes fuscus can reach a length of 55 centimetres (22 inches) in males. The body is mainly brown, but fins have yellow margins. Juveniles are yellowish brown with a network of brilliant bluish wavy lines. With growth these lines become interconnected. 
This fish is known for its aggressiveness and many divers choose to stay away from them, as they bite often.
Yellow-spotted triggerfish is a reef-associated species. It prefers coastal waters, shallow lagoons and seaward reefs, at 30–50 metres (98–164 ft) of depth. 
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