Issue No. 317
Kurt Auffenberg and Lionel A. Stange
April, 1989
Introduction
Polygyridae is one of the most widely distributed and diverse families of land snails in North America. The family occurs from Central America north to southern Alaska, eastward throughout the United States (except for several Rocky Mountain States), the Bahamas, Bermuda, Cuba (Pilsbry, 1940) and Hispaniola (U.F. collections). This large geographic area encompasses many habitats to which members of this family have adapted admirably. Species can be found in maritime to high montane habitats and from arid regions in Mexico and the southwest to the humid woodlands of eastern North America.