MolluscaBase taxon details
original description
(of Ennea radius Preston, 1910) Preston, H. B. (1910). Additions to the non-marine molluscan fauna of British and German East Africa and Lake Albert Edward. <em>The Annals and Magazine of Natural History.</em> (8) 6 (35): 526-536, pl. 7-9. London. [1 November]., available online at https://www.biodiversitylibrary.org/page/18619767
page(s): 529, pl. 7, fig. 8. [details]
identification resource
Brown, K. (2021). A guide to the hunter shells. Vol.1. The Streptaxoidea. The Gulellinae and Primigulellinae. ConchBooks, Germany.
page(s): 66. [details]