Family
HELICINIDAE
Genera
Alcadia
Calybium
Subgenera
Calybium
Geotrochatella
Genera cont'd
Emoda
Eutrochatella
Geophorus
Helicina
Subgenera
Helicina
Oligyra
Genera cont'd
Hendersonia
Lucidella
Orobophana
Priotrochatella
Pseudohelicina
Sulfurina
Subgenera
Kosmetopoma
Sulfurina
Genera cont'd
Viana
Waldemaria

Family
NERITOPSIDAE
Genera
Neritopsis
Radula

Family
PHENACOLEPADIDAE
Genus
Phenacolepas
Subgenera
Amapileus
Cinnalepeta
Phenacolepas
Zacalantica
Genera cont'd
Plesiothyreus
Scutella
Scutellina
Scutulina

Family
SEPTARIIDAE
Genera
Catillus
Cibota
Cimber
Laodia
Paria
Septaria
Subgenera
Navicella
Navicellus
Orthopoma
Paraseptaria
Scapha
Stenopoma
Genera cont'd
Septarius

Family
TITISCANIIDAE
Genus
Titiscania