Truncatella is a genus of very small land snails with an operculum, terrestrial gastropod mollusks in the family Truncatellidae.

These minute snails live in land habitats close to seawater.

[4] Instead of gliding over a slime trail using minute waves in its foot, Truncatella uses a very large and muscular proboscis to reach ahead and grasp a surface, at which point the small foot releases its hold and the proboscis contracts to pull the animal forward, after which the entire procedure is usually repeated.

Most of the species in this genus live in a habitat that is neither fully terrestrial nor fully marine: they live under plant debris near high tide level, where they are occasionally wetted with seawater by waves.

These small snails are typically found associated with drifts of plant material, where their eggs are deposited.