Sowerby, G. B. II. (1874). Monograph of the genus
Cultellus. In:
Conchologia iconica, or illustrations of the shells of molluscous animals, vol. 19, pls 1-7 and unpaginated text. L. Reeve & Co., London [stated dates: pl. 2-5, June 1874; pl. 1, 6-7, August 1874].