C.  Garrido, Castillejo, J., and Iglesias, J., ?The Arion subfuscus complex in the eastern part of Iberian Peninsula, with redescription of Arion subfuscus (Draparnaud 1805) (Gastropoda: Pulmonata: Arionidae)?, Archiv für Molluskenkunde, vol. 124, pp. 103-118, 1995.