B. Rowson, P. Tattersfield (2013). Revision of Dadagulella gen. nov., the “Gulella radius group” (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies. European Journal of Taxonomy 37, S. 1–46. doi:10.5852/ejt.2013.37.
J. Gerlach (2001): Conturbatia, a new genus of Streptaxidae (Mollusca, Gastropoda, Pulmonata) . Zoosystematics and Evolution 77 (2), S. 297–302. doi:10.1002/mmnz.20010770213.
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K. C. Emberton (2002): Parvedentulina and edentate Gulella of Madagascar (Gastropoda: Stylommatophora: Streptaxidae). Archiv für Molluskenkunde 131 (1/2), S. 67–165. Zusammenfassung.