In "Land and Fresh Water Shells,'' Part I, by W. G. Binney and T. Bland, 1869, the mollusk to which I invite your attention is called Helix cooperi. In "Manual of American Land Shells," by W. G. Binney, 1885, this little mollusk is honored with the following synonymy: Helix strigosa, Gould; Anguispira strigosa, Tryon; Helix cooperi, W. G. Binney; Anguispira cooperi, Tryon; Helix haydeni, Gobb, Patula strigosa. W. G. Binney; Anguispira bruneri, Ancy. In this work Mr. Binney uses the second name proposed by himself, viz: Patula strigosa. Inasmuch as the regions inhabited by this creature are quite diverse in regard to climate and food, it would seem most likely a considerable variation in size, form and color would necessarily follow. It appears to be at home throughout the Rocky Mountain region in the United States.
Proceedings of the Iowa Academy of Sciences
©1892 Iowa Academy of Science, Inc.
Witter, F. M.
"Some Observations on Helix cooperi,"
Proceedings of the Iowa Academy of Science, 1(Pt. 3), 28-29.
Available at: https://scholarworks.uni.edu/pias/vol1/iss3/12