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Genus: Acanthurus, Tangs, Surgeonfishes


All Families:   All Genera:   All Species:

very compressed disc
tail base: knife
teeth short, fixed, tips notched

ACANTHURUS

SURGEONFISHES, TANGS

Body a strongly compressed disc; head profile steep; eye high on side of  head; mouth small, protrusible, low on head; teeth on jaws fixed, with flattened, notched tips, 8-28 on each jaw; dorsal fin usually with IX spines, not very high, no notch after spines; pelvic fin I, 5; a single depressible spine fits into a groove on the side of the base of the tail; scales very small, rough; lateral line complete.

A circumtropical genus with about 42 species; 3 W Atlantic species occur in our area.