Tryon, G. W. (1870). A monograph of the fresh-water univalve Mollusca of the United States. Part 1. Conchology section, Academy of Natural Sciences Philadelphia, Philadelphia. pp 1-82, plates 12-17.
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Tryon, G. W.
1870
<i>A monograph of the fresh-water univalve Mollusca of the United States. Part 1</i>. Conchology section, Academy of Natural Sciences Philadelphia, Philadelphia. pp 1-82, plates 12-17