Top Snails

Trochida

Trochida (top snails) is an order in the class Gastropoda, containing 1,930 described species.

Scientific classification

Families

• Trochidae521
• Calliostomatidae403
• Skeneidae229
• Turbinidae159
• Solariellidae140
• Colloniidae130
• Liotiidae79
• Tegulidae62
• Margaritesidae59
• Phasianellidae59
• Areneidae35
• Conradiidae34
• Angariidae20