Blue-black garden slug
Arion (Kobeltia) hortensis
An informal survey of the plant and animal life living in or visiting the grounds of Pointfield, Kelso since 2015
Molluscs: slugs
Small (1-2 cm) black slug; mantle less than one-third of body length; side of body has a low dark band almost reaching the base. Antennaer black. Characteristic row of white tubercles at base. No keel. Sole orange; mucus orange.
Found under stones and logs around the garden and in wilf flower meadow in November.