Traits name details
original description
(of ) Craven, A.E. (1880). On a collection of land and freshwater shells made during a short expedition to the Usambara Country in eastern Africa, with descriptions of seven new species. <em>Proceedings of the Zoological Society of London 1880: 216–219.</em> page(s): 218 [details]
basis of record
Verdcourt, B. (1953). Notes on some East African Gulellae. <em>Basteria 17(3): 36–43.</em> page(s): 38 [details] Available for editors
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