A segmented worm with between 30 and 60 subdivided segments and a small head with two anterior lateral projections forming a T shape. The body is 5-10 cm long and wrinkled in appearance. Scalibregma inflatum is swollen anteriorly and then becomes slender towards the rear. Purplish red with yellow blotches it has four pairs of branching gills present on the second to fifth segments.Scalibregmatidae (sometimes called maggot worms) are not routinely encountered, although they can occur in huge numbers in shallow waters in northern Europe. More often, they occur in muddy sediments at more than 1000 m depth. They are active burrowers and feed on detritus in sediment and never form tubes.