MolluscaBase name 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]
additional source
Rowson, B. (2007). Land molluscs of Zanzibar Island (Unguja), Tanzania, including a new species of Gulella (Pulmonata: Streptaxidae). <em>Journal of Conchology 39: 425–466.</em>
page(s): 442 [details] Available for editors [request]
additional source
Verdcourt, B. (1985). New taxa of Gulella L. Pfr. and Ptychotrema Mörch (Mollusca, Streptaxidae) from Eastern Africa. <em>Journal of Conchology 32: 109–121.</em>
page(s): 119 [details] Available for editors [request]
additional source
Rowson, B.; Warren, B. H.; Ngereza, C. F. (2010). Terrestrial molluscs of Pemba Island, Zanzibar, Tanzania, and its status as an “oceanic” island. <em>ZooKeys.</em> 70: 1-39., available online at https://doi.org/10.3897/zookeys.70.762
page(s): 28 [details] Available for editors [request]
new combination reference
Rowson, B. & Tattersfield, P. (2013). Revision of Dadagulella gen. nov., the “Gulella radius group” (Gastropoda: Streptaxidae) of the eastern Afrotropics, including six new species and three new subspecies. <em>European Journal of Taxonomy 37: 1-46.</em> , available online at http://dx.doi.org/10.5852/ejt.2013.37
page(s): 6 [details] Available for editors [request]