Da Costa, S. I. (1898). Remarks on some species of Bulimulus, Sect. Drymaeus, and description of new species of land-shells from Bolivia, Ecuador, and the U.S. of Colombia. Proceedings of the Malacological Society of London. 3: 80-84, pl. 6, text-figs. 1-2.
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Da Costa, S. I.
1898
Remarks on some species of <i>Bulimulus</i>, Sect. <i>Drymaeus</i>, and description of new species of land-shells from Bolivia, Ecuador, and the U.S. of Colombia
Proceedings of the Malacological Society of London