Arion gilvus

Arion gilvus is a medium-sized species, reaching an extended length of up to 65 mm

The back is typically a yellowish to brown color. The body color lightens as it moves downward along the flanks. The flanks are marked by dark lateral bands. A distinctive feature is the presence of a yellowish-grey line running along the upper edge of these dark bands. The foot sole is white or a uniformly yellowish color. The slime secreted by the animal is a pale yellow.^[2]

This species occurs in the eastern coastal region of Spain.

• Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16th, 2017.
• Garrido, C., Castillejo, J. & Iglesisas, J. (1995). The Arion subfuscus complex in the eastern part of the Iberian Peninsula, with redescription of Arion subfuscus (Draparnaud 1805) (Gastropoda: Pulmonata: Arionidae). Archiv für Molluskenkunde, 124 (1/2): 103-118. Frankfurt am Main.