| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 283507 | MI | Mason | Pleiness Lake | 2006 | 04060101 | Pere Marquette-White | established |
| 283508 | MI | Mason | Bass Lake | 2008 | 04060101 | Pere Marquette-White | established |
| 942981 | MI | Oceana | Pentwater Lake | 2015 | 04060101 | Pere Marquette-White | established |
| 1563361 | MI | Mason | [No locality description provided] | 2014 | 04060101 | Pere Marquette-White | established |
| 1563405 | MI | Mason | [No locality description provided] | 2014 | 04060101 | Pere Marquette-White | established |
| 1567850 | MI | Oceana | [No locality description provided] | 2016 | 04060101 | Pere Marquette-White | established |
| 1567855 | MI | Oceana | [No locality description provided] | 2016 | 04060101 | Pere Marquette-White | established |
| 1567860 | MI | Oceana | [No locality description provided] | 2016 | 04060101 | Pere Marquette-White | established |
| 1567866 | MI | Oceana | [No locality description provided] | 2016 | 04060101 | Pere Marquette-White | established |
| 1567876 | MI | Oceana | [No locality description provided] | 2016 | 04060101 | Pere Marquette-White | established |
| 1567945 | MI | Oceana | [No locality description provided] | 2016 | 04060101 | Pere Marquette-White | established |
| 1886825 | MI | Oceana | Pentwater Lake | 2020 | 04060101 | Pere Marquette-White | established |
| 1886823 | MI | Oceana | Pentwater Lake | 2020 | 04060101 | Pere Marquette-White | established |
| 1886824 | MI | Oceana | Pentwater Lake | 2020 | 04060101 | Pere Marquette-White | established |
Citation for this information:
U.S. Geological Survey, 2025,
Nitellopsis obtusa: U.S. Geological Survey, Nonindigenous Aquatic Species Database, Gainesville, FL, https://nas.er.usgs.gov, Access Date: 12/4/2025