Pseudofusulus varians is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Clausiliidae.

It is a relict species from Atlantic period of the Holocene, inhabiting exclusively nature beech and scree forests in Europe.

[7] Pseudofusulus varians is very exacting on the quality of its environment and its populations are small and quite scattered in the whole of its range.

[7] In the Czech Republic it is strictly associated with trees, restricted to undisturbed and hardly accessible natural beech forests.

[7] Pseudofusulus varians is strictly dendrophilous species, so the main threat is dead wood removing and clearcutting.