original description(ofScala valida Verco, 1906)Verco, J.C. (1906). Notes on South Australian marine Mollusca with descriptions of new species, part III. <em>Transactions of the Royal Society of South Australia.</em> 30: 143-150, pl. 4., available online athttps://www.biodiversitylibrary.org/page/16124205 page(s): 147, pl. 4 fig. 7 [details]