Physical Characteristics

Commonly reaches 10.2 in (26 cm) in standard length but may reach 19.7 in (50 cm). The upper lip is very thick, with up to 10 rows of small papillae in fish larger than 2.4 in (6 cm). There are no teeth on the lips. The anal fin has three spines and usually nine soft rays in adults. There are 36-42 scales in a longitudinal series along the flanks. Body is olive-green dorsally and silvery on the flanks and abdomen. Pectoral fins are yellowish, with a distinct dark purplish spot at the upper part of the fin base.

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