Helicina (suborder)

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:

• 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)

References

1. Helicina (disambiguation)
2. Helicina (infraorder)
3. Azecoidea
4. Azecidae
5. Pupilloidei
6. Sea butterfly
7. Testacelloidea
8. Sagdoidea
9. Succineoidea
10. Limacina
11. Ariolimacidae
12. Rhytidoidea
13. Sea angel
14. Oleacinoidea
15. Stylommatophora
16. Zachrysiidae
17. Sigmurethra
18. Zachrysia
19. Succineidae
20. Limacoidei