Burch, John B. How to Know the Eastern Land Snails. Dubuque: WMC Brown Company Publishers, 1964. 52. Print

"Catalogue of Life - 3rd January 2011 :: Species details." Catalogue of Life - 3rd January 2011 :: Search all names. N.p., n.d. Web. 26 Mar. 2011. <

Fitch, Henry S., and Donald H. Lokke. "The Molluscan Record of Succession on the University of Kansas Natural History Reservation." Transactions of the Kansas Academy of Science 59.4 (): 442-54. Web. 6 Mar. 2011. <>.

"Grassland Animals." Hamilton Naturalists' Club. Hamilton Naturalists' Club, n.d. Web. 22 Mar. 2011. <>.

Laws. "Gastrocopta pentadon (Say), Comb snaggletooth snail - Biodiversity of Great Smoky Mountains National Park." Discover Life in America - All Taxa Biodiversity Inventory. Discover Life in America, n.d. Web. 26 Mar. 2011. <>.

Nekola, Jeffery C., and Brian F. Coles. "Systemactics and Ecology of Gastrocopta (Gastrocopta) rogersensis (Gastropoda: Pupillidae), a new species of land snail from the Midwest of the United States of America." The Nautilus 2.3 (2001): 105-14. Web. 6 Mar. 2011.  

Nekola, J. C. (2003), Large-scale terrestrial gastropod community composition patterns in the Great Lakes region of North America. Diversity and Distributions, 9: 55–71. doi: 10.1046/j.1472-4642.2003.00165.x

Nekola, J. C. (2010), Acidophilic terrestrial gastropod communities of North America. Journal of Molluscan Studies; May2010, Vol. 76 Issue 2, p144-156, 13p, 4 Charts, 4 Graphs, 1 Map. EDS Foundation Index. Accession Number: 53297955.

Nordsieck, R. "Mating and Reproduction." Die lebende Welt der Weichtiere. N.p., n.d. Web. 24 Mar. 2011. <

Pilsbury, Henry A. "Land Mollusca of North America." The Academy of Natural Sciences of Philadelphia 2.2 (1948): 907. Print.

"Snail Anatomy." Facts about Snails. N.p., n.d. Web. 26 Mar. 2011. <>.

Snodgrass, Kathleen. "Ancient Climate as Inferred by Land Snails at the Brokenleg Bend Locality, Oklahoma." Land Snails 1 (2000): 154-160. Print

"Wing Snaggletooth (Gastrocopta procera) - WDNR." Wisconsin Department of Natural Resources. Wisconsin DNR, n.d. Web. 22 Mar. 2011. <

Worthington, R. D. and Artie, M. L. (1997), Additions to the Present and Quaternary Gastropod Faunas of the Franklin Mountains, El Paso County, Texas. The Southwestern Naturalist. Vol. 42, No. 4 (Dec., 1997), pp. 471-477. Published by: Southwestern Association of Naturalists .