W. P.  Leonard, Chichester, L., Richart, C. H., and Young, T. A., ?Securicauda hermani and Carinacauda stormi, two new genera and species of slug from the Pacific Northwest of the United States (Gastropoda: Stylommatophora: Arionidae), with notes on Gliabates oregonius Webb 1959?, Zootaxa, vol. 2746, pp. 43-56, 2011.