Helicina (suborder)
| Helicina | |
|---|---|
| Truncatellina cylindrica | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subcohort: | Panpulmonata |
| Superorder: | Eupulmonata |
| Order: | Stylommatophora |
| Suborder: | Helicina Rafinesque, 1815 |
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)