Alphabetical Listing of Families within this Taxa Group:

family     Aglajidae		T4026739
family     Alacuppidae		T4027089
family     Antarctophilinidae		T4023756
family     Bullidae		T4032500
family     Colpodaspididae		T4027088
family     Cylichnidae		T4009645
family     Diaphanidae		T4009660
family     Gastropteridae		T4026747
family     Haminoeidae		T4024918
family     Laonidae		T4023714
family     Mnestiidae		T4027090
family     Newnesiidae		T4027115
family     Philinidae		T4009656
family     Philinoglossidae		T4031358
family     Philinorbidae		T4023715
family     Retusidae		T4026722
family     Rhizoridae		T4032544
family     Scaphandridae		T4009644
family     Tornatinidae		T4024954
family     [unassigned] Cephalaspidea		T4027146