BioStor
 | XLVI.—Diagnoses of new forms of Mollusca from the Vancouver district Philip P Carpenter (1864) Annals And Magazine of Natural History 14: 423-430 |
 | Scientific results of explorations by the U. S. Fish Commission steamer Albatross. No. XVII..Descriptions of new West American land, fresh-water, and marine shells, with notes and comments Robert E C Stearns (1890) Proceedings of The United States National Museum 13: 205-225 |