"This species is now restricted to two areas, one along the Connecticut River in southern Massachusetts and Connecticut, the other one along the Chesapeake Bay in Maryland (Pearson et al. 2006: 170, 193). It formerly occurred along the Connecticut River as far north as central New Hampshire" (Bousquet, 2012).
There are 38 records in the project database.
GA | AL | WA | FR | CL | MO | HO | BA | BC | HA | CE | PG | AA | CV | CH | SM | KE | QA | CN | TA | DO | WI | SO | WO |