Tree Slug (Lehmannia marginata)

Tree Slug (Lehmannia marginata)

Observation - Tree Slug (Lehmannia marginata) - UK and Ireland. Description: Sadly this is the only photo I have of this slug. It looks as though the pneumostome is in the rear half of the mantle. Perhaps Tandonia? Edit: Changed to match Christian's ID. Many thanks.

Sadly this is the only photo I have of this slug. It looks as though the pneumostome is in the rear half of the mantle. Perhaps Tandonia?
Edit: Changed to match Christian's ID. Many thanks.