^ abcCameron R. A. D., Cook L. M. & Hallows J. D. (29 March 1996). "Land Snails on Porto Santo: Adaptive and Non-Adaptive Radiation". Philosophical Transactions: Biological Sciences351(1337): 309-327. doi:10.1098/rstb.1996.0025, JSTOR.
^ abcdefghijFontaine B., Bouchet P., Van Achterberg K., Alonso-Zarazaga M. A., Araujo R. et al. (2007). "The European union’s 2010 target: Putting rare species in focus." Biological Conservation139: 167-185. Table 2 on p. 173. doi:10.1016/j.biocon.2007.06.012. PDF.
Cameron R. A. D., Laurence M. Cook L. M., Goodfriend G. A. & Seddon M. B. (2006). "Fossil land snail faunas of Porto Santo, Madeiran archipelago: change and stasis in Pleistocene to recent times". Malacologia49(1): 25–59. doi:10.4002/1543-8120-49.1.25.
Cameron R. A. D., da Cunha R.M.T. & Martins A. M. F. (2007). "Chance and necessity: land-snail faunas of São Miguel, Azores, compared with those of Madeira." Journal of Molluscan Studies73(1): 11–21. doi:10.1093/mollus/eyl027
Cameron R. A. D., Cook L. M. & Gao G. (1996). "Variation in snail species widespread on Porto Santo, Madeiran archipelago." Journal of Molluscan Studies62: 143–150. abstract.
Seddon M. B. (2008). "The landsnails of Madeira. An illustrated compendium of the landsnails and slugs of the Madeiran archipelago. Studies in Biodiversity and Systematics of Terrestrial Organisms from the National Museum of Wales". BIOTIR Reports2: 204 pp. ISBN978-0-7200-0585-1.
book review: Cameron R. A. D. (2009). Folia Malacologica 17(1): 45–47. abstract