Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
874751
| MA | Essex | Kenoza at sampling station A | 1991 |
01070006
| Merrimack River | established |
874570
| MA | Essex | Kenoza at sampling station A | 1991 |
01070006
| Merrimack River | established |
874421
| MA | Essex | Kenoza at sampling station C | 1991 |
01070006
| Merrimack River | established |
874585
| MA | Essex | Kenoza at sampling station C | 1991 |
01070006
| Merrimack River | established |
874597
| MA | Essex | Kenoza at sampling station F | 1991 |
01070006
| Merrimack River | established |
874696
| MA | Essex | Kenoza at sampling station G | 1991 |
01070006
| Merrimack River | established |
874770
| MA | Essex | Kenoza at sampling station G | 1991 |
01070006
| Merrimack River | established |
874400
| MA | Essex | Kenoza at sampling station H | 1991 |
01070006
| Merrimack River | established |
874407
| MA | Essex | Kenoza at sampling station H | 1991 |
01070006
| Merrimack River | established |
874715
| MA | Essex | Kenoza at sampling station K | 1991 |
01070006
| Merrimack River | established |
874363
| MA | Essex | Kenoza at sampling station M | 1991 |
01070006
| Merrimack River | established |
874743
| MA | Worcester | Webster at sampling station B | 1991 |
01100001
| Quinebaug River | established |
874443
| MA | Worcester | Webster at sampling station L | 1991 |
01100001
| Quinebaug River | established |
874606
| MA | Worcester | Webster at sampling station L | 1991 |
01100001
| Quinebaug River | established |
874417
| MA | Worcester | Webster at sampling station R | 1991 |
01100001
| Quinebaug River | established |
874398
| MA | Worcester | Webster at sampling station T | 1991 |
01100001
| Quinebaug River | established |
874483
| MA | Worcester | Webster at sampling station U | 1991 |
01100001
| Quinebaug River | established |
874617
| MA | Worcester | Webster at sampling station U | 1991 |
01100001
| Quinebaug River | established |