Carychium exiguum
(Say, 1822)- Obese Thorn
References
Binney, W. G. & T. Bland. 1869. Land and fresh water shells of North America. Part 1. Pulmonata Geophila. —Smithsonian Miscellaneous Collections, 194:6-8.
Dillon, Robert T. The Ecology of Freshwater
Molluscs. Cambridge: Cambridge UP, 2000. 58-83. Print.
Frank, Bill. "Carychium Exiguum (Say, 1822) Obese
Thorn." Jacksonville Shells - WWW.JAXSHELLS.ORG. Web. 20 Mar.
2011. <http://www.jaxshells.org/cary.htm>.
Hickman, Cleveland P. Animal Diversity. Boston: McGraw-Hill
Higher Education, 2009. 179-203. Print.
Kolb, KK.,
Nelson, N.E., Zakrzewski, R.J. 1975. The Duck Creek Molluscan Fauna
(Illinoian) From Ellis County, Kansas. Kansas Academy of Science.
78: 63-74.
Martins, Antonio. "Terrestrial Molluscs." Portal
Da Biodiversidade Dos Açores. Web. 20 Mar. 2011. <http://www.azoresbioportal.angra.uac.pt/listagens.php?lang=en&sstr=7&id=M00029>.
Miller, B.
1970. The Sandahl Molluscan Fauna (Illlinoian) From McPherson
County, Kansas. The Ohio Journal of Science 70:
39-51.
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.
Nekola, J.C.
2005: Geographic variation in richness and shell size of eastern
North American land snail communities. Records of Western Australian
Museum Supplement. 68: 39-51.
Perez, K.E., J. Cordeiro, J. Gerber, editors.
A guide to terrestrial gastropod
identification. American Malacological Society
Terrestrial Gastropod Identification Workshop. 2008. 22-23.
Schneider, Allan F., and Gordon S. Fraser. Late
Quaternary History of the Lake Michigan Basin. Boulder, CO:
Geological Society of America, 1990. 24-26.Print.