The worms in this family are called 'Scaleworms' and are generally found under stones in intertidal and subtidal zones. These broad flattened worms have a row of bristles on both sides of their body and reach a length of about 1 inch (2.5 cm). Probably those in the genus Lepidonotus are of most interest as they may arrive on live rock from the Indo-Pacific Ocean. They are basically scavengers, feeding on dead organic matter