original description(ofPurpura distinguenda Dunker, 1866)Dunker, W. & Zelebor, J. (1866). Bericht über die von der Novara-Expedition mitgebrachten Mollusken. <em>Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien.</em> 16: 909-916., available online athttp://biodiversitylibrary.org/page/26724138 page(s): 910 [details]
basis of recordBarnard, K. H. (1959). Contributions to the knowledge of South African marine Mollusca. Part. II. Gastropoda: Prosobranchiata: Rhachiglossa. <em>Annals of the South African Museum.</em> 45: 1-237., available online athttp://biodiversitylibrary.org/page/40866077[details]
Present Inaccurate Introduced: alien Containing type locality