Bar plots of records (Top) and species richness (Bottom) by CONUS state including the District of Columbia. Nebraska and South Dakota are excluded with zero occurrences in these states.

  Part of: Gladstone NS, Bordeau TA, Leppanen C, McKinney ML (2020) Spatiotemporal patterns of non-native terrestrial gastropods in the contiguous United States. NeoBiota 57: 133-152.