Traits name details
original description
Lycett, J. (1863). Supplementary monograph on the Mollusca from the Stonesfield Slate, Great Oolite, Forest Marble, and Cornbrash. <em>Monographs of the Palaeontographical Society of London.</em> 15: 1-129, pls XXXI-XLV., available online at https://www.biodiversitylibrary.org/page/36956458 page(s): 103-104, pl. 45, figs 7, 7a, 7b [details]
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