The herring cale (Olisthops cyanomelas) is a species of ray-finned fish, a weed whiting from the family Odacidae which is endemic to Australia where it is found along the southern and southeastern coast. It inhabits the surf zone, ranging to a depth of 30m (100feet) in rocky areas with plentiful growth of brown algae, which it feeds on. This species grows to a length of 51cm (20inches) SL.[1] This species is the only known member of the genus Olisthops, but it has frequently been placed in Odax instead.[1]