Traits name details
original description
Whitfield, R. P. (1878). Remarks on some lamellibranchiate shells of the Hudson River Group, with the descriptions of four new species. <em>The Journal of the Cincinnati Society of Natural History.</em> 1(3): 137-141, pl. 6., available online at https://www.biodiversitylibrary.org/page/7547754 page(s): 138, pl. 6, fig. 5 [details]
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