This slug is basically dark brownish grey, with a keel of a brighter color. The body is yellowish-grey to brown or dark grey, with numerous black spots, so that the slug may appear to be evenly black-brown, slightly lighter at the sides.
This slug has a primary coloration of dark brownish grey, with a brighter keel. The body varies from yellowish-grey to brown or dark grey, featuring numerous black spots, resulting in an overall uniform black-brown appearance, with lighter edges.