| Specimen ID | State | County | Locality | Year | HUC Number | Drainage Name | Status |
| 871498 | NY | Monroe | Little Pond | 2005 | 04130001 | Oak Orchard-Twelvemile | established |
| 902959 | NY | Niagara | Lake Ontario, Wilson Tuscarora State Park | 2006 | 04130001 | Oak Orchard-Twelvemile | established |
| 902958 | NY | Niagara | Lake Ontario, Wilson Tuscarora State Park | 2006 | 04130001 | Oak Orchard-Twelvemile | established |
| 1672122 | NY | Monroe | [No locality description provided] | 2018 | 04130001 | Oak Orchard-Twelvemile | |
| 1820526 | NY | Monroe | Slater Creek | 2015 | 04130001 | Oak Orchard-Twelvemile | |
| 1829231 | NY | Monroe | Long Pond | 2018 | 04130001 | Oak Orchard-Twelvemile | |
| 1828650 | NY | Monroe | Long Pond | 2018 | 04130001 | Oak Orchard-Twelvemile | |
| 1828651 | NY | Monroe | Long Pond | 2018 | 04130001 | Oak Orchard-Twelvemile | |
| 1828652 | NY | Monroe | Long Pond | 2018 | 04130001 | Oak Orchard-Twelvemile | |
| 1829240 | NY | Monroe | Long Pond | 2018 | 04130001 | Oak Orchard-Twelvemile | |
| 1831896 | NY | Monroe | Salmon Creek | 2019 | 04130001 | Oak Orchard-Twelvemile | |
| 1831898 | NY | Monroe | Salmon Creek | 2019 | 04130001 | Oak Orchard-Twelvemile | |
| 1831899 | NY | Monroe | Salmon Creek | 2019 | 04130001 | Oak Orchard-Twelvemile | |
| 1831900 | NY | Monroe | Salmon Creek | 2019 | 04130001 | Oak Orchard-Twelvemile | |
| 1834188 | NY | Monroe | Salmon Creek | 2018 | 04130001 | Oak Orchard-Twelvemile | |
| 1838478 | NY | Monroe | [No locality description provided] | 2020 | 04130001 | Oak Orchard-Twelvemile | |
| 1841974 | NY | Monroe | Salmon Creek | 2020 | 04130001 | Oak Orchard-Twelvemile | |
| 1841975 | NY | Monroe | Salmon Creek | 2020 | 04130001 | Oak Orchard-Twelvemile | |
| 1841976 | NY | Monroe | Salmon Creek | 2020 | 04130001 | Oak Orchard-Twelvemile | |
| 1841978 | NY | Monroe | Salmon Creek | 2020 | 04130001 | Oak Orchard-Twelvemile | |
| 1841979 | NY | Monroe | Salmon Creek | 2020 | 04130001 | Oak Orchard-Twelvemile | |
| 1841980 | NY | Monroe | Salmon Creek | 2020 | 04130001 | Oak Orchard-Twelvemile | |
| 1841981 | NY | Monroe | Salmon Creek | 2020 | 04130001 | Oak Orchard-Twelvemile | |
| 1841982 | NY | Monroe | Salmon Creek | 2020 | 04130001 | Oak Orchard-Twelvemile | |
| 1841987 | NY | Monroe | Salmon Creek | 2020 | 04130001 | Oak Orchard-Twelvemile | |
| 1841989 | NY | Monroe | Salmon Creek | 2020 | 04130001 | Oak Orchard-Twelvemile | |
| 1841991 | NY | Monroe | Salmon Creek | 2020 | 04130001 | Oak Orchard-Twelvemile | |
| 1841993 | NY | Monroe | Salmon Creek | 2020 | 04130001 | Oak Orchard-Twelvemile | |
| 1844053 | NY | Monroe | Salmon Creek | 2021 | 04130001 | Oak Orchard-Twelvemile | |
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