Phascolosomatidae
Phascolosomatidae is a family of peanut worms. It is the only family in the order Phascolosomatida, which is in the only order in the subclass Phascolosomatidea.
Genera
''Antillesoma''
''Apionsoma''
Apionsoma capitata Apionsoma misakianum Apionsoma murinae Apionsoma pectinatum Apionsoma trichocephala Sluiter, 1902''Phascolosoma''
Phascolosoma agassizii Phascolosoma albolineatum Phascolosoma annulatum Phascolosoma arcuatum Phascolosoma glabrum Phascolosoma granulatum Phascolosoma lobostomum Phascolosoma maculatum Phascolosoma meteori Phascolosoma nigrescens Phascolosoma noduliferum Phascolosoma pacificum Phascolosoma perlucens Phascolosoma saprophagicum Phascolosoma scolops Phascolosoma stephensoni- ''Phascolosoma turnerae''