At one of our stations in western Turkey a couple of weeks ago, we collected a large number of large, empty Helix shells. There were no live snails around until I came upon one partially buried in cool, moist soil in the shade of a rock crevice. Unlike some of their relatives (for example, Helix aspersa) that tend to attach themselves to vertical surfaces when resting, these snails instead bury themselves in soil.
Freshly pulled out of its hole, it had soil clinging to its large, fleshy, pink foot. After we put it on a rock, it hesitatingly started to crawl. It certainly would have been a mouth-watering addition to any snail-eaters menu.
Throughout our expedition, we tried to minimize the collection of live snails. This is a rule we have been enforcing among ourselves for several years. Dissections are, however, sometimes necessary. The species identity of this particular Helix eluded us. Sadly, we had to sacrifice it for further study.