| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 236343 | MI | Muskegon | Muskegon Lake in Muskegon | 2006 | 04060102 | Muskegon | established |
| 241094 | MI | Delta | Lake Michigan in Little Bay de Noc, Escanaba | 2007 | 04190000 | Lake Michigan | established |
| 241096 | MI | Mackinac | Lake Michigan at Naubinway | 2007 | 04190000 | Lake Michigan | established |
| 241100 | MI | Muskegon | Lake Michigan at Muskegon, MI - off the NOAA field station, in the channel | 2007 | 04190000 | Lake Michigan | established |
| 264213 | MI | Antrim | East Arm Grand Traverse Bay near Elk Rapids Harbor | 2008 | 04060105 | Boardman-Charlevoix | collected |
| 264215 | MI | Emmet | Lake Michigan, Little Traverse Bay [E of Harbor Spring] | 2008 | 04060105 | Boardman-Charlevoix | collected |
| 558275 | MI | Charlevoix | Lake Michigan, at Whiskey Point, St. James Harbor, Beaver Island | 2013 | 04190000 | Lake Michigan | established |
| 1884246 | MI | Muskegon | Muskegon Lake | 2015 | 04060102 | Muskegon | established |
| 1884247 | MI | Muskegon | Lake Michigan | 2015 | 04190000 | Lake Michigan | established |
| 1884248 | MI | Muskegon | Lake Michigan | 2015 | 04190000 | Lake Michigan | established |
| 1884249 | MI | Muskegon | Lake Michigan | 2015 | 04190000 | Lake Michigan | established |
| 1884250 | MI | Muskegon | Lake Michigan | 2015 | 04190000 | Lake Michigan | established |
| 1884251 | MI | Muskegon | Muskegon Lake | 2015 | 04060102 | Muskegon | established |
| 1884252 | MI | Muskegon | Lake Michigan | 2015 | 04190000 | Lake Michigan | established |
| 1328469 | MI | Mackinac | McKay Bay in the Les Cheneaux Islands (about 4 mi east of Cedarville on the Upper Peninsula) | 2016 | 04240002 | Lake Huron | established |
| 268866 | MI | Alpena | Thunder Bay near LaFarge Cement Plant [Alpena] on three reefs | 2010 | 04240002 | Lake Huron | collected |
| 282648 | MI | Monroe | Lake Erie [near Maumee Bay] | 2011 | 04260000 | Lake Erie | established |
| 1322465 | MI | Presque Isle | Lake Huron between Rogers City and Adams Point | 2015 | 04240002 | Lake Huron | unknown |
| 1409644 | MI | Mackinac | McKay Bay | 2016 | 04240002 | Lake Huron | established |
| 1711737 | MI | Alpena | Thunder Bay Shores marina | 2020 | 04240002 | Lake Huron | |
Citation for this information:
U.S. Geological Survey, 2025,
Hemimysis anomala: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 12/19/2025