Taxon - Links and literature
Galli C.: WMSDB - Wolrdwide Mollusc Species Data Base July 10, 2013 [http://www.bagniliggia.it/WMSD/WMSDhome....] [as Cyclopilsbrya asperula Sowerby, 1843]Data retrieved on: 23 November 2013
Rosenberg G., Muratov I. V. (2006): Status Report on the Terrestrial Mollusca of Jamaica, Proceedings of the Academy of Natural Sciences of Philadelphia, 155(1):117-161. [as Cyclopilsbrya asperula (Sowerby I, 1843)]