Red Slug, Chocolate Arion or European Red Slug <i><a href="//commons.wikimedia.org/wiki/Arion_rufus" title="Arion rufus">Arion rufus</a></i> (copulation), Family: Arionidae, Location: Germany, Ulm, Eggingen
<a href="//commons.wikimedia.org/wiki/User:Holleday" title="User:Holleday">Holger Krisp</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>