MolluscaBase name details
original description
Sharpe, D. (1850). On the secondary district of Portugal, which lies on the North of the Tagus. <em>Quarterly Journal of the Geological Society of London.</em> 6: 135-201, pls 14-26., available online at https://www.biodiversitylibrary.org/page/36933960
page(s): 181, pl. 20, fig. 2 [details]