The Weed wrasse (Halichoeres papilionaceus), also known as Schwatz's wrasse or the seagrass wrasse, is a species of wrasse native to the Pacific Ocean from Sumatra to Solomon Islands. It can be found in groups at depths from 1 to 4 m (3.3 to 13.1 ft) in seagrass beds and coral reefs. This species can reach 12 cm (4.7 in) in total length. Body is oval, rather elongated and laterally compressed. Adults are green and pinkish.

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