Traits name details
original description
Sowerby, J. De C. (1823-1825). The mineral conchology of Great Britain; or coloured figures and descriptions of those remains of testaceous animals or shells, which have been preserved at various times and depths in the earth. Vol. V. London, privately published, pp. 1-168 + index [169-171], pl. 408-503., available online at http://www.biodiversitylibrary.org/item/50318 page(s): 116, pl. 474, fig. 1 [details]
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