Helicina

Helicina is a suborder of land gastropods which consists of former members of the informal group Sigmurethra which were proven to make a clade. It encompasses the following infraorders along with a collection of families with no superfamily:

Suborder Helicina ("Non-Achatinoid Clade")

Infraorder Arionoidei

Infraorder Clausilioidei

Infraorder Helicoidei: formed from Helicoidea Rafinesque, 1815 and Sagdoidea Pilsbry, 1895

Infraorder Limacoidei: formed from original limacoid clade

Infraorder Oleacinoidei

Oleacinoidea: formed from original Testacelloidea but with the family Testacellidae excluded;

Haplotrematoidea: formed from original Rhytidoidea and Haplotrematidae

Infraorder Orthalicoidei

Infraorder Pupilloidei (Orthurethra)

Infraorder Rhytidoidei: formed by Rhytidoidea merging with contents from Acavoidea.

Infraorder Succineoidei (Elasmognatha)

Infraorder Helicina (temporary name)