| Helicina | |
|---|---|
| | |
| Truncatellina cylindrica | |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subcohort: | Panpulmonata |
| Superorder: | Eupulmonata |
| Order: | Stylommatophora |
| Suborder: | Helicina Rafinesque, 1815 |
After excluding groups not related, the informal group Sigmurethra has become the suborder Helicina, with the following infraorders and a collection of families with no superfamily: [1] [2]