Sowerby's keeled slug
Tandonia sowerbyi
An informal survey of the plant and animal life living in or visiting the grounds of Pointfield, Kelso since 2015
Molluscs: slugs
Small chestnut brown slug; mantle less than one-quarter of body length; body with prominent orange keel running along its entire length; body mottled brown/yellow. Sole pale without stripe.
Found under pot outside greenhouse. Uncommon.