Taxonomia

• Lineage:
• Root
/
• Animalia
/
• Mollusca
/
• Gastropoda
/
• Gymnosomata

Gymnosomata (order)

• familyClionidae
• familyCliopsidae
• familyHydromylidae
• familyNotobranchaeidae
• familyPneumodermatidae
• familyThliptodontidae