Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
235261
| MA | Essex | Cottle's Creek, Haverhill | 1932 |
01070006
| Merrimack River | collected |
235259
| MA | Essex | Newburyport city, Newburyport Turnpike | 1930 |
01070006
| Merrimack River | collected |
235271
| MA | Essex | Newburyport, unspecified location | 1941 |
01070006
| Merrimack River | collected |
235286
| MA | Essex | North Andover, Clark Street | 1958 |
01070006
| Merrimack River | collected |
235269
| MA | Essex | West Newbury, unspecified location | 1940 |
01070006
| Merrimack River | collected |
213542
| MA | Middlesex | Abbot's Woolen Mill,Graniteville, in the upper Merrimac River valley. | 1908 |
01070006
| Merrimack River | established |
235215
| MA | Middlesex | Bedford, Mink Road, unspecified | 1890 |
01070006
| Merrimack River | collected |
235216
| MA | Middlesex | Bedford, NW corner of Huckins Street | 1890 |
01070006
| Merrimack River | unknown |
235237
| MA | Middlesex | Graniteville, Westford, near Abbot's wooden mill | 1908 |
01070006
| Merrimack River | collected |
235212
| MA | Middlesex | North Chelmsford, unspecified location | 1882 |
01070006
| Merrimack River | collected |
235230
| MA | Middlesex | Stony Brook, Chelmsford, North Chelmsford, | 1900 |
01070006
| Merrimack River | collected |
235249
| MA | Middlesex | Westford Hill, Westford | 1914 |
01070006
| Merrimack River | collected |
235226
| MA | Middlesex | Westford, unspecified location | 1899 |
01070006
| Merrimack River | collected |
235227
| MA | Middlesex | Westford, unspecified location | 1899 |
01070006
| Merrimack River | collected |
235251
| MA | Middlesex | Westford, unspecified location | 1916 |
01070006
| Merrimack River | collected |