original description
(of Trochus bifasciatus Burrow, 1815) Burrow, E. I. (1815). Elements of conchology, according to the Linnæan system, illustrated by 28 plates, drawn from nature. London, R. & A. Taylor, xix + 246 pp. [1st edition]., available online at https://www.biodiversitylibrary.org/page/11954321
page(s): 188, pl. 27 fig. 2 [details]
original description
(of Drymaeus bifasciatus var. minarum Ancey, 1901) Ancey, C. F. (1901). Notes sur divers mollusques de l'Amérique du Sud accompagnées de descriptions d'espèces nouvelles. <em>Le Naturaliste.</em> ser. 2, 15(332): 81-82; 15(339): 92-93; 15(340): 103-104., available online at https://www.biodiversitylibrary.org/page/44498866
page(s): 93 [details]
basis of record
Simone, L. R. L. (2006). <i>Land and Freshwater Molluscs of Brazil</i>. Editora Grafíca Bernardi, FAPESP. São Paulo, 390 pp.
page(s): 147, Fig. 495 [details]
From editor or global species database
Type locality Brazil, Pernambuco [details]