Anthony, J.G. (1855). Descriptions of new species of Ancylus and Anculosa, from the western states of North America. Annals of the Lyceum of Natural History of New York, 6: 158-160, plate 5.
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Anthony, J.G.
1855
Descriptions of new species of Ancylus and Anculosa, from the western states of North America.
Annals of the Lyceum of Natural History of New York