This is found amongst coral reef fishes such as groupers, parrotfishes and wrasses. Species with this condition include parrotfish, wrasses, sea basses, flatheads, sea breams and lightfishes. Commonly consumed fish include menhaden, eels, silversides, wrasses, jacks, toadfish, and filefish. Predators include pycnogonid sea spiders, wrasses and sea turtles. Large manta rays, green sea turtles, and humphead wrasses can also be seen. Large Ballan wrasses are almost certainly male. Achoerodus is a genus of wrasses collectively known as blue gropers. This occurs in coral reef species, such as damselfishes, wrasses, parrotfishes, surgeonfishes, triggerfishes and tilefishes. Humphead wrasses likely do not travel very far for their spawning aggregations. As an example, most wrasses are protogynous hermaphrodites within a haremic mating system. Cleaner wrasses are the best-known of the cleaner fish. Cleaner wrasses are usually found at cleaning stations. Rafinesque originally assigned the rock bass to "Bodianus," a genus of marine wrasses (family Labridae). Juvenile and adult humphead wrasses are found in different ranges. Sabah (located on Borneo Island) is a major source for humphead wrasses.