Preston, H. B. (1912). Diagnoses of new species of terrestrial and fluviatile shells from British and German East Africa, with the description of a new genus (Eussoia) from the Eusso Nyiro River, B.E. Africa. Proceedings of the Zoological Society of London. 80(1): 183-193, pls. 31-33. [13 March].
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Preston, H. B.
1912
Diagnoses of new species of terrestrial and fluviatile shells from British and German East Africa, with the description of a new genus (Eussoia) from the Eusso Nyiro River, B.E. Africa