original description(ofScala invalida Verco, 1906)Verco, J.C. (1906). Notes on South Australian marine Mollusca, with descriptions of new species. Part IV. <em>Transactions and Proceedings of the Royal Society of South Australia.</em> 30: 205-224, pls 8-10., available online athttps://www.biodiversitylibrary.org/page/16124267[details]