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.
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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)