Fotos: (1-3) Natural History Museum, London: HOLOTYPE de Drymaeus malleatus, NHMUK 1907.11.21.130, 34.5mm, coll. da Costa
Fontes:
Descrição original: (como Bulimulus (Drymaeus) malleatus S. I. Da Costa, 1898)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., disponível online em https://www.biodiversitylibrary.org/page/32075423
página(s): 82, pl. 6 fig. 7
Breure ASH, Ablett J (2014) Annotated type catalogue of the Bulimulidae (Mollusca, Gastropoda, Orthalicoidea) in the Natural History Museum, London. ZooKeys 392: 1-367. disponível online em https://doi.org/10.3897/zookeys.392.6328