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Truncilla macrodon, Specimen #1513

Description: One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; white internal coloring; tan external coloring; no external sculpturing. The specimen measures between 0 - 60 mm in length and was assessed to be recently dead when collected.
Date: unknown
Creator: Cummings, W. F.
Partner: Elm Fork Natural Heritage Museum

Pyganodon grandis, Specimen #732

Description: One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; thin shell; double looped beak sculpturing; white internal coloring; brown external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures over 120 mm in length and was assessed to be relatively-recently dead when collected.
Date: June 24, 1974
Creator: Pettit, J.
Partner: Elm Fork Natural Heritage Museum