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 1to in seagrass beds and coral reefs. This species can reach 12cm (05inches) in total length. Body is oval, rather elongated and laterally compressed. Adults are green and pinkish.