B.  Verdcourt, ?East African slugs of the family Urocyclidae - part 2?, Journal of the East African Natural History Society, vol. 23, pp. 233-240, 1960.

J. L.  Van Goethem, ?Revision systematique des Urocyclinae (Mollusca, Pulmonata, Urocyclidae)?, Konink. Mus. Midden-Afrika Tervuren, Belg. Ann. - reeks in-8 Zool. Wetensch., vol. 218, pp. 1-355, 1977.

A. A.  Schilekyo, ?Treatise on recent terrestrial pulmonate molluscs?, 9, vol. Ruthenica, 2002.

A. A.  Schilekyo, ?Treatise on recent terrestrial pulmonate molluscs?, Ruthenica, vol. 10, 2003.

A. A.  Schilekyo, ?Treatise on recent terrestrial pulmonate molluscs?, Ruthenica, vol. 11, 2003.

B.  Rowson, Warren, B. H., and Ngereza, C. F., ?Terrestrial molluscs of Pemba Island, Zanzibar, Tanzania, and its status as an ?oceanic? island?, 2010.