Length 100 to 150mm. Also called the ‘Great Grey Slug’ or the ‘Giant Garden Slug’, this is a large slug which is yellowish-grey to pinkish in colour, although this can be quite variable, with distinctive dark brown blotches and spots. It has a pronounced dorsal keel, and the sole is whitish. Its mucus is sticky and clear.
It feeds on fresh and rotting plants of many kinds, and fungi.
Commonly associated with human habitation, and is found in gardens, cellars and outbuildings. It is also found in damp and shady hedgerows and woods. It hides during the day under logs and stones. Common and widespread.