Cerithiacea Cone Shells (Conidae) Cowries (Cypraeidae) Crepidulacea Deep Sea Augers, True Augers (Turritellidae) Egg Shells, Ovulas, False Cowries (Ovulidae) Frog Shells (Bursidae) Harp Shells (Harpidae) Helmet Shells (Cassidae) Marginellas, Margin Shells (Marginellidae) Miters (Mitridae) Moon Shells (Naticidae) Murex and Rock Shells (Muricidae) Nassa Mud Snails (Nassariidae) Olive Shells (Olividae) Ostrich Foot Shells (Strombacea) Pagoda Shells (Columbariidae) Periwinkles (Littorinidae) Tritons, Trumpets (Ranellidae (Cymatiidae)) True Conchs (Strombidae) Tulips, Spindle Shells, Horse Conchs (Fasciolariidae) Tun Shells (Tonnidae) Turbinellidae Turrids (Turridae) Volutes (Volutidae) Whelks, Melon & Crown Conches (Melongenidae)
