Inanidrilus belizensis is a species of annelid worm. Many have a two-host lifecycle, involving a fish and an annelid worm or a bryozoan. Pomatoceros triqueter is a species of tube-building annelid worm in the class Polychaeta. Salmacina dysteri is a species of tube-forming annelid worm in the family Serpulidae. Hydroides norvegica is a species of tube-forming annelid worm in the family Serpulidae. Hydroides ezoensis is a species of tube-forming annelid worm in the family Serpulidae. "Arenicola" is a genus of capitellid annelid worm comprising the lugworms and black lugs. Capitella teleta is a small, cosmopolitan, segmented annelid worm. The earthworm is a limbless annelid worm with a hydrostatic skeleton that moves by peristalsis. This armoured annelid worm is the relative of the modern-day earthworm, leech and bristleworm.