| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 1863019 | NY | Lewis | [No locality description provided] | 2023 | 04140301 | Black | |
| 1863020 | NY | Lewis | [No locality description provided] | 2023 | 04140301 | Black | |
| 1863021 | NY | Lewis | [No locality description provided] | 2023 | 04140301 | Black | |
| 1863026 | NY | Lewis | [No locality description provided] | 2023 | 04140301 | Black | |
| 1863027 | NY | Lewis | [No locality description provided] | 2023 | 04140301 | Black | |
| 1863028 | NY | Lewis | [No locality description provided] | 2023 | 04140301 | Black | |
| 1863029 | NY | Lewis | [No locality description provided] | 2023 | 04140301 | Black | |
| 1863030 | NY | Lewis | [No locality description provided] | 2023 | 04140301 | Black | |
| 1863031 | NY | Lewis | [No locality description provided] | 2023 | 04140301 | Black | |
| 1863032 | NY | Lewis | [No locality description provided] | 2023 | 04140301 | Black | |
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