Remarkably, the former family "Sabellidae" was found to be paraphyletic, necessitating the elevation of the sabellid subfamily Fabriciinae
to full family rank (Kupriyanova and Rouse, 2008; Capa et al.
According to the taxonomic keys of Fauchald (1977) and Rozbaczylo (1980), all of these polychaetes belong to the family Sabellidae; subfamily Fabriciinae
, and genus Oriopsis (according to Day 1967 and Fitzhugh 1989).
The family includes about 490 species that fall into two clades, the subfamilies Fabriciinae
and Sabellinae (Rouse and Pleijel, 2001).
An example using 20 species of the Fabriciinae