| Bulimus multifasciatus var. imperfectus (Guppy, 1866): 49. |
| Drymaeus imperfectus—Pilsbry 1899: 19.—Arias (1953): 248.—Oliveira, Rezende & Castro, 1981: 348.—Oliveira & Almeida, 1999: 37.—Simone, 2006: 138. |
| Drymaeus (Mesembrinus) imperfectus—Breure & Ablett, 2014: 197. |
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