Phascolionidae

Phascolionidae is a family of peanut worms.

Onchnesoma

 * Onchnesoma intermedium Murina 1976
 * Onchnesoma magnibathum Cutler 1969
 * Onchnesoma squamatum (Koren and Danielssen, 1875)
 * Onchnesoma steenstrupii Koren & Danielssen 1875

Phascolion

 * Phascolion abnorme Fischer 1895
 * Phascolion bogorovi Murina 1973
 * Phascolion caupo Hendrix 1975
 * Phascolion cirratum Murina, 1968
 * Phascolion collare Selenka and de Man, 1883
 * Phascolion convestitum Sluiter, 1902
 * Phascolion cryptum Hendrix, 1975
 * Phascolion gerardi Rice, 1993
 * Phascolion hedraeum Selenka and de Man, 1883
 * Phascolion hibridum Murina 1981
 * Phascolion hupferi Fischer, 1895
 * Phascolion lucifugax Selenka and de Man, 1883
 * Phascolion lutense Selenka, 1885
 * Phascolion medusae Cutler and Cuttler, 1980
 * Phascolion megaethi Cutler & Cutler 1979
 * Phascolion microspheroidis Cutler and Duffy, 1972
 * Phascolion pacificum Murina, 1957
 * Phascolion pharetratum Sluiter 1902
 * Phascolion psammophilus Rice 1993
 * Phascolion rectum Ikeda, 1904
 * Phascolion robertsoni Stephen & Robertson 1952
 * Phascolion strombus (Montagu, 1804)
 * Phascolion tuberculosum Théel, 1875
 * Phascolion ushakovi Murina 1974
 * Phascolion valdiviae Fischer, 1916