Morlet, L. 1886. Diagnoses Molluscorum novorum Tonkini. Journal de Conchyliologie 34: 75-. https://www.biodiversitylibrary.org/page/16070966.

Morlet, 1886. J. de Conch. 34: 76.
SYNTYPE BMNH_93-2-4-1395, near Lang-son Chu, Tonkin.

Morlet, 1886. J. de Conch. 34: 76, pl. 13, figs. 5-5a.
SYNTYPES MNHN-IM-2000-33685, Bac Hat etang de la riviere Claire.

Morlet, 1886. J. de Conch. 34: 77, pl. 13, figs. 6-6a.
SYNTYPE MNHN-IM-2000-1747, Tonkin, environs de Chu.