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Actinella anaglyptica is a species of land snail in the family Hygromiidae, the hairy snails and their allies. It is endemic to Madeira, where it is known only from the Ilhas Desertas.

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Actinella armitageana is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails and their allies.

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Aeolidiella alderi is a species of sea slug, an aeolid nudibranch in the family Aeolidiidae. It is native to northwestern Europe where it occurs in the intertidal zone. It is a predator and feeds on sea anemones.

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Agathotoma neglecta is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

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Arion intermedius is a species of land slug in the family Arionidae, the roundback slugs. It is known commonly as the hedgehog slug, hedgehog arion, or glade slug. It is native to Western Europe, and it is known as an introduced species in many other regions, including North America, Australia, New Zealand, North Africa, South Africa, and the Pacific Islands.

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Calliostoma leanum, common name the pretty mouth, is a species of sea snail, a marine gastropod mollusk in the family Calliostomatidae.

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Chromodoris aspersa is a species of colourful sea slug, a dorid nudibranch, a marine gastropod mollusc in the family Chromodorididae.

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Cinysca dunkeri is a species of sea snail, a marine gastropod mollusk in the family Areneidae.

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Clanculus plebejus, common name the plebeian clanculus, is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

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Clypeomorus pellucida, common name the pellucid cerith, is a species of sea snail, a marine gastropod mollusk in the family Cerithiidae.

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Cyclostrema cingulatum is a species of sea snail, a marine gastropod mollusk in the family Liotiidae.

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Daedalochila uvulifera, common name the peninsula liptooth, is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Polygyridae.

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Discus engonatus is an extinct species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Discidae, the disk snails.

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Emarginula candida is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.

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Emarginula dilecta is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.

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Entoconcha mirabilis is a species of very small parasitic sea snail, a marine gastropod mollusk in the family Eulimidae. This species is the only one known to exist within the genus, Entoconcha. The species is parasitic on holothuroidea, sea cucumbers. As an adult it resembles a worm and has no shell.

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Helix engaddensis is a species of snail common in the Levant, both in Mediterranean, desert and montane climates. It is smaller than the closely related European Garden snail and usually lighter in color. H. engaddensis goes through estivation. It is dormant in the ground during the dry season and emerges after the first rains. Mating takes place soon after emerging. The snails are active through winter and return to an inactive state at the end of the wet season (midspring).

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Hemilienardia malleti is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.

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Hemimarginula pumila, the pygmy ermarginula, is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets.

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Leptaxis wollastoni is an endangered species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicidae, the typical snails. This species is endemic to Madeira.

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Lithoglyphus apertus is a species of freshwater snail with an operculum, an aquatic gastropod mollusk in the family Lithoglyphidae.

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Littoraria albicans is a species of sea snail, a marine gastropod mollusk in the family Littorinidae, the winkles or periwinkles.

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†Littoridina gaudichaudii is a species of small freshwater snail with a gill and an operculum, an aquatic gastropod mollusk in the family Hydrobiidae.

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Marilynessa yulei is a species of snail in the family Camaenidae.

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Melibe leonina, commonly referred to as the hooded nudibranch, lion nudibranch, or lion's mane nudibranch, is a species of predatory nudibranch in the family Tethydidae.

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Mirabilistrombus listeri, common name the Lister's conch, is a species of sea snail, a marine gastropod mollusk in the family Strombidae, the true conchs.

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Nassarius cinctellus is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.

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Nassarius coronulus, common name the small crown dog whelk, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.

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Nassarius distortus, common name : the distorted nassa, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.

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Nassarius echinatus is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.

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Nassarius fissilabris is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.

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Nassarius niveus, common name the lattice dogwhelk, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks.

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Nassarius siquijorensis, common name the burned nassa, is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the nassa mud snails or dog whelks.

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Notocytharella striosa is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

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Nucella ostrina, the northern striped dogwinkle, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails. Other common names for this mollusk include emarginate dogwinkle, short-spired purple dogwinkle, striped dogwinkle, ribbed dogwinkle, emarginate whelk, ribbed rock whelk, rock thais, short-spired purple snail and rock whelk.

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Odostomia clathratula is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

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Odostomia communis is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

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Odostomia inconspicua is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

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Odostomia marginata is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

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Odostomia notabilis is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

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Odostomia paupercula is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

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Odostomia terebellum is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

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Oxychilus camelinus is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Oxychilidae, the glass snails.

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Paralaoma servilis is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Punctidae, the dot snails.

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Pedinogyra rotabilis is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusc in the family Caryodidae.

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Prisogaster elevatus is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.

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Pusionella valida is a species of sea snail, a marine gastropod mollusk in the family Clavatulidae.

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Pyramidella conica is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

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Sphincterochila prophetarum is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Sphincterochilidae.

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Tayuva lilacina is a species of sea slug, a dorid nudibranch, shell-less marine gastropod mollusks in the family Discodorididae. A number of species descriptions are considered to be synonyms.

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Terebralia semistriata, common name the striate mud creeper, is a species of sea snail, a marine gastropod mollusk in the family Potamididae.

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Theodoxus saulcyi is a species of small freshwater snail with an operculum, an aquatic gastropod mollusk in the family Neritidae, the nerites.

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Triodopsis hopetonensis is a species of air-breathing land snail, terrestrial pulmonate gastropod mollusk in the family Polygyridae.

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Trochoidea liebetruti is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Hygromiidae, the hairy snails and their allies. This species is endemic to Cyprus.

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Trochomorpha apia is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Trochomorphidae.

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Tugali decussata is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.

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Turbonilla gracilior is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

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Variemarginula variegata is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets and slit limpets.

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Victaphanta atramentaria, common name the Gippsland black snail, is a species of carnivorous air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Rhytididae.

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Zonulispira grandimaculata is a species of sea snail, a marine gastropod mollusk in the family Pseudomelatomidae, the turrids and allies.