Deroceras (Liolytopelte) occidentalis (Grossu & Lupu, 1966)
Morphology:
External: Slug yellowish white, sometimes with gray pigments on mantle; dorsum with white line in the middle.
Internal: Penis egg-shaped without apppendices or penial gland; vas deferens and retractor penis attached closely together near the posterior end of penis; stimulator conical, with a characteristical plate on it, like a flattened cap with a serrated margin.
Size:
Up to 30 mm long (preserved).
Distribution:
Romania, W Ukraine (W Carpathians, Chernivtsi region).
Type locality: Romania: W Carpathians, Stînade de Vale.