Traits taxon details
original description
(of ) Pilsbry, H. A. & Vanatta, E. G. (1896). Catalogue of the species of <i>Cerion</i>, with descriptions of new forms. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 48: 315-338, pl. 11., available online at https://www.biodiversitylibrary.org/page/1675669 page(s): 330, pl. 11, fig. 12 [details]
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