The Family Sabellariidae is reviewed and revised, based on examination of type material, previously published reports, and original studies of new material. A chronological synopsis of the genera, a summary of general characteristics of the family, taxonomic keys, and brief descriptions of the characteristics of the various genera and species, along with their zoogeographic distribution as inferred from collection localities, are included. These sand-tube building annelids are recorded from a wide range of marine zoogeographic provinces and are particularly abundant in the surf zone along shorelines with mobile, sand size particles in recurrent turbulent suspension. Species are also recorded from the floors of continental shelves and slopes and from great depths in the ocean. According to the present analysis, interpretation, and account the family Sabellariidae contains 2 newly defined subfamilies [Sabellariinae, Lygdaminae for Lygdamis and Mariansabellaria, etc, etc], 12 known genera, including 4 new genera [Neosabellaria, Paraidanthyrsus, Mariansabellaria, Gesaia], and 111 species, including 27 new combinations and 43 new species.
