Sample LocationMassachusetts; Middlesex Co.; Squannacook River; 1.4 mi. SE of Townsend, 0.77 mi WSW Townsend Harbor, Townsend Town BoundaryCollection Date1983-06-15
Pyganodon cataracta (Unionidae): 14369. Franklin College Collections, accessed 12/11/2026, https://digitalcollections.franklin.uga.edu/nodes/view/40537