Helix nucula is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Helicidae, the typical snails.

It has a rounded shell with white aperture margins; it differs from the similar Helix figulina by fine spiral grooves on the upper shell surface.

[3] Previously, the name H. nucula was used also for Helix pronuba, an unrelated species occurring in North Africa and on Crete, creating some confusion in the literature.

[4] This land snail inhabits areas near the south and west coasts of Turkey as well as eastern Aegean Islands of Greece.

[6] Helix pachya from Lebanon and Syria is not a distinct lineage in the analysed mitochondrial data, and is probably synonymous with H.