Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
252908
| CT | Fairfield | Mamanasco Lake, Ridgefield | 2005 |
02030101
| Lower Hudson | collected |
1634590
| CT | Fairfield | Pequonnock River, Bridgeport | 1893 |
01100006
| Saugatuck | extirpated |
1319716
| CT | Fairfield | unspecified Stratford pond | 2002 |
01100005
| Housatonic | unknown |
274488
| CT | Hartford | Mill Pond Park, growing in 20 cm of water | 2009 |
01080205
| Outlet Connecticut River | collected |
1634587
| CT | Litchfield | 1.5 acre pond located at 9 Beardsly Road, Kent | 1997 |
01100005
| Housatonic | failed |
1409828
| CT | Litchfield | Pinnacle Valley, immediately E of Lake Waramug. On Franklin parcel immediatley N/ NE of right-of-way that runs up the valley | 2004 |
01100005
| Housatonic | unknown |
1634591
| CT | Middlesex | Smith Road, southern side of pond at eastern terminus of Airline Bicycle Trail north of old railroad right of way, East Hampton | 2006 |
01080205
| Outlet Connecticut River | eradicated |
1634588
| CT | New Haven | Rt. 142 and Nicole Road, Branford | 1995 |
01100004
| Quinnipiac | extirpated |
1634589
| CT | New Haven | Rt. 142 and Nicole Road, Branford | 1999 |
01100004
| Quinnipiac | extirpated |
274489
| CT | New Haven | Runoff Pond in Condominium complex called Danny's Way | 2004 |
01100004
| Quinnipiac | eradicated |
274487
| CT | New London | Hopeville Pond | 2005 |
01100001
| Quinebaug River | collected |
1468888
| CT | New London | Pawcatuck river below dam on Alice Court | 2012 |
01100007
| Pawcatuck River | unknown |