Traits taxon details
original description
Pilsbry, H. A. (1939). Land Mollusca of North America (north of Mexico). Volume I Part 1. <em>The Academy of Natural Sciences of Philadelphia Monographs.</em> 3: i-xvii, 1-573, i-ix. Philadelphia [6 December]. page(s): 332, fig. 201 [details] Available for editors
From editor or global species database
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