Northern Illinois wetlands were sampled for freshwater snails to obtain baseline data on the distribution of the assemblage. Twenty-six sites were sampled in the region during 2012 and 2013. Thirteen species were collected as live or fresh-dead shells, three species were found only as relict shells, and 16 species known from natural history museums were not encountered during the 2012-2013 surveys. The species composition, including extant and rare species, is similar to those reported in surrounding states.
|Name||INHS Technical Report 2014 (07)|