Observação: conhecida anteriormente por Subcancilla candida (Reeve, 1845), (Rios, 2009)
Descrição original: Reeve, L. A. (1844-1845). Monograph of the genus Mitra. In: Conchologia Iconica, or, illustrations of the shells of molluscous animals, vol. 2, pl. 1-39 and unpaginated text. L. Reeve & Co., London. [stated dates: pl. 1-7, August 1844; pl. 8-15, September 1844; pl. 16-19, October 1844; pl. 20-23, November 1844; pl. 24-27, December 1844; pl. 28-29, January 1845; pl. 30 imprinted March 1844, presumably March 1845; pl. 31-39, March 1845]. , available online athttp://biodiversitylibrary.org/page/8937231 page(s): pl. 39, species no. 328