Heterobranchia

• Euthyneura
• "Lower Heterobranchia"
• Acteonelloidea
• Masaevia
• Mesoneura
• Nerineoidea
• Streptacidoidea
• Roman Snail Helix pomatia

  Helix pomatia has a large rounded shell, cream-colored with faint brown bands. Its native range is in central and southeastern Europe, and it lives in woods, hedgerows, and tall vegetation.