Grant, U. S. & H. R. Gale, 1931 [3 November], Catalogue of the marine Pliocene and Pleistocene Mollusca of California and adjacent regions; with notes on their morphology, classification, and nomenclature and a special treatment of the Pectinidae and the Turridae (including a few Miocene and Recent species), together with a summary of the stratigraphic relations of the formations involved. Memoirs of the San Diego Society of Natural History, 1: 1036 pp., 32 pls.
Powell, A. W. B., 1942 [15 July], The New Zealand Recent and fossil Mollusca of the family Turridae with general notes on turrid nomenclature and systematics. Bulletin of the Auckland Institute and Museum, 2: 188 pp., 14 pls.