BioStor
 | Notes on the mollusks of the vicinity of San Diego, Cal., and Todos Santos Bay, Lower California Charles R Orcutt (1885) Proceedings of The United States National Museum 8: 534-552 |
 | Notes on some species ot Epitomum, Subgenus Nitidtscala, from the West Coast of North America (1930) Transactions of The San Diego Society For Natural History 6: 183-196 |