Invasion
Invasion Description
1st Record: Terrebonne Parish/LA/swamp ~4 km east of Chacahoula on HWY 20 (2008, USGS Nonindigenous Aquatic Species Program 2009)
Geographic Extent
Terrebonne Parish/LA/swamp ~4 km east of Chacahoula on HWY 20 (2008, USGS Nonindigenous Aquatic Species Program 2009); Lafourche Parish/LA/ Ditch near Gulf Intracoastal Waterway (7/10/2016, USGS Nonindigenous Aquatic Species Program 2016, snails laying egs)
Vectors
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