Helicigona trizona is a species of small air-breathing land snail, a terrestrial gastropod mollusc in the family Helicidae, the true snails. Subspecies Subspecies within this species include: Helicigona trizona rumelica (Rossmässler, 1838) Distribution This species is not listed in IUCN red list and not evaluated (NE) It occurs in countries including: Hungary References External links https://www.biolib.cz/en/taxon/id268974 Helicidae Gastropods described in 1838