There are two sections – the first is Alphabetical Index by Common Family Name and the second is Alphabetical Index by Scientific Family Name.

GASTROPOD SHELL FAMILIES (46) – Alphabetical Index by Common Name:
Abalone Shells of the Haliotidae Family (4)
Auger Shells of the Terebridae Family (4)
Bubble Shell of the Bullidae Family (1)
Carrier Shell of the Xenophoridae Family (1)
Cerith Shells of the Cerithiidae Family (3)
Conch Shell, Crown of the Melongenidae Family (1)
Conch Shells, Horse, Spindle, and Tulip of the Fasciolariidae Family (5)
Conch Shells, True of the Strombidae Family (4)
Cone Shells of the Conidae Family (16)
Cowry Shells of the Cypraeidae Family (6)
Cowry, False, Shells of the Ovulidae Family (4)
Cup-and-Saucer Shells and Slipper Limpet Shells of the Calyptraeidae Family (11)
Dove Shells of the Columbellidae Family (6)
False Limpet Shells of the Siphonaridae Family (2)
Fig Shell of the Ficidae Famlily (1)
Frog Shell of the Bursidae Family (1)
Harp Shells of the Harpidae Family (2)
Helmet Shells of the Cassidae Family (3)
Hoof Shell of the Hipponicidae Family (1)
Horn Shells of the Potamididae Family (2)
Limpet Shells, Keyhole, of the Fissurellidae Family (6)
Limpet Shells, True, of the Lottiidae Family (4)
Periwinkle Shells of the Littorinidae Family (4)
Miter Shells of the Miitridae Family (3)
Moon Shells of the Naticidae Family (7)
Mud Shells of the Nassariidae Family (2)
Nerite Shells of the Neritidae Family (4)
Nutmeg Shells of the Cancellariidae Family (3)
Olive Shells of the Olivadae Family (6)
Periwinkle Shells of the Littorinidae Family (3)
Rock Shells of the Muricidae Family (32)
Sea-snail Shell of the Janthinidae Family (1)
Top Shells of the Tegulidae Family (5)
Top, Nobel, Shells of the Calliostomidae Family (1)
Triton Shells of the Cymatiidae Family (4)
Triton, False, Shells of the Pisaniidae Family (4)
Trivia Shells of the Triviidae Family (3)
Tun Shells of the Tonnidae Family (1)
Turret Shells of the Turritellidea Family (4)
Turrid Shell of the Pseudomelatomidae Family (1)
Turrid Shells of the Turridae Family (2)
Vase Shells of the Turbinellidae Family (2)
Volute Shells of the Volutidae Family (1)
Whelk Shells of the Buccinidae Family (1)
Whelk, True, Shells, of the Austrosiphonidae Family (1)
Worm Shells of the Vermetidae Family (1)

GASTROPOD SHELL FAMILIES (46) – Alphabetical Index by Scientific Name:
Austrosiphonidae Family of True Whelk Shells (1)
Buccinidae Family of Whelk Shells (1)
Bullidae Family of Bubble Shells (1)
Bursidae Family of Frog Shells (1)
Calliostomidae Family of Nobel Top Shells (1)
Calyptraeidae Family of Cup-and-Saucer and Slipper Limpet Shells (11)
Cancellariidae Family of Nutmeg Shells (3)
Cassidae Family of Helmet Shells (3)
Cerithiidae Family of Cerith Shells (3)
Columbellidae Family of Dove Shells (6)
Conidae Family of Cone Shells (16)
Cymatiidae Family of Triton Shells (4)
Cypraeidae Family of Cowry Shells (6)
Fasciolariidae Family of Horse, Spindle, and Tulip Conch Shells (5)
Ficidae Family of Fig Shells (1)
Fissurellidae Family of Keyhole Limpet Shells (6)
Haliotidae Family of Abalone Shells (4)
Harpidae Family of Harp Shells (2)
Hipponicidae Family of Hoof Shells (1)
Haliotidae Family of Abalone Shells (4)
Janthinidae Family of Sea-snail Shells (1)
Littorinidae Family of Periwinkle Shells (4)
Lottilidae Family of True Limpet Shells (4)
Melongenidae Family of Crown Conch Shells (1)
Mitridae Family of Miter Shells (3)
Muricidae Family of Rock Shells (32)
Nassariidae Family of Mud Shells (2)
Naticidae Family of Moon Shells (7)
Nerite Shells of the Neritidae Family (4)
Olivadae Family of Olive Shells (6)
Ovulidae Family of False Cowry Shells (4)
Pisaniidae Family of False Triton Shells (4)
Potamididae Family of Horn Shells (2)
Pseudomelatomidae Family of Turrid Shells (1)
Siphonariidae Family of False Limpet Shells (2)
Strombidae Family of True Conch Shells (4)
Tegulidae Family of Top Shells (5)
Terebridae Family of Auger Shells of the Terebridae Family (4)
Tonnidae Family of Tun Shells (1)
Triviidae Family of a Shells of the Trivia Family (3)
Turbinellidae Family of Vase Shells (2)
Turbinidae Family of Turban Shells (5)
Turritellidea Family of Turret Shells Family (4)
Turridae Family of Turrid Shells (2)
Vermetidae Family of Worm Shells (1)
Volutidae Family of Volute Shells (1)
Xenophoridae Family of Carrier Shells (1)