 Stephanolepis cirrhifer , commonly known as the thread @-@ sail filefish , is a species of marine fish in the family <unk> . It is found in the western Pacific , in an area that ranges from northern Japan to the East China Sea , to Korea . Other common names for the fish include " <unk> " ( Japanese ) and " <unk> @-@ chi " ( Korean ) . The fish grows to a maximum length of about 12 inches ( 30 centimetres ) , and consumes both plant material and small marine organisms like skeleton shrimp . S. cirrhifer is host of the parasite <unk> <unk> . Some minor genetic differentiation between S. cirrhifer born in the wild and those bred in a <unk> for consumer use has been shown . The fish is edible and sold commercially for culinary purposes in many Asian countries . 
