Invasion

Invasion Description

1st Record: East Chicago/IN/Lake George Canal, Lake Michigan (5/3/1988, Carlton 2008, several shells collected)

Geographic Extent

East Chicago/IN/Lake George Canal, Lake Michigan (5/3/1988, Carlton 2008, several shells collected); Amoco Oil Company at Whiting/IN/Lake Michigan (1989, USGS Nonindigenous Aquatic Species Program 2008)