This is the snail used for escargot, although according to the German Wikipedia they are protected and therefore cultivated snails are used for this.
Ho does a ménage à trois work in hermaphrodites?
Helix pomatia Linnaeus, 1758, pair mating, Søborg, Denmark, 5 June 2014
Helix pomatia Linnaeus, 1758, Søborg, Denmark, 8 May 2014
Helix pomatia, common names the Burgundy snail, Roman snail, edible snail or escargot, is a species of large, edible, air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicidae. It is a European species. It is called by the French name escargot when used in cooking.