Andaman and Nicobar Islands for
Balanoglossus carnosus Müller in Spengel, 1893
Antarctic Peninsula for
Cephalodiscus fumosus John, 1931
Antarctic Peninsula for
Cephalodiscus nigrescens Lankester, 1905
Bahamian for
Saccoglossus caraibicus van der Horst, 1924
Baltic Sea for
Glossobalanus marginatus Meek, 1922
Bermuda for
Rhabdopleura compacta Hincks, 1880
Cape Howe for
Rhabdopleura annulata Norman, 1921
Celtic Seas for
Saccoglossus ruber Tattersall, 1905
Floridian for
Balanoglossus gigas (Müller in Spengel, 1893)
Floridian for
Ptychodera bahamensis Spengel, 1893
Floridian for
Schizocardium brasiliense Spengel, 1893
Maldives for
Ptychodera flava Eschscholtz, 1825
South Georgia for
Cephalodiscus hodgsoni Ridewood, 1907
Southeastern Brazil for
Balanoglossus clavigerus Delle Chiaje, 1829
Southern Norway for
Rhabdopleura normani Allman, 1869
Western and Northern Madagascar for
Spengelia porosa Willey, 1898
White Sea for
Saccoglossus mereschkowskii (Wagner, 1885)