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 Collection: Joseph Britton Freshwater Mussel Collection
Pyganodon grandis, Specimen #874

Pyganodon grandis, Specimen #874

Date: July 20, 1974
Creator: Britton, Joseph
Description: One preserved mussel specimen including the right valve only. The specimen exhibits an elliptical shape; thin shell; double looped beak sculpturing; bluish-white internal coloring; tan external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures between 100 - 120 mm in length and was assessed to be recently dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Pyganodon grandis, Specimen #872

Pyganodon grandis, Specimen #872

Date: July 20, 1974
Creator: Britton, Joseph
Description: One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thin shell; double looped beak sculpturing; bluish-white internal coloring; tan external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures between 100 - 120 mm in length and was assessed to be recently dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Pyganodon grandis, Specimen #888

Pyganodon grandis, Specimen #888

Date: August 28, 1980
Creator: Golightly, C.
Description: One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thin shell; double looped beak sculpturing; bluish-white internal coloring; dark brown external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures between 100 - 120 mm in length and was assessed to be relatively-recently dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Pyganodon grandis, Specimen #880

Pyganodon grandis, Specimen #880

Date: July 20, 1974
Creator: Britton, Joseph
Description: One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thin shell; double looped beak sculpturing; bluish-white internal coloring; olive external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures between 0 - 60 mm in length and was assessed to be recently dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Leptodea fragilis, Specimen #462

Leptodea fragilis, Specimen #462

Date: October 21, 1971
Creator: Pettit, J.
Description: One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; thin shell; double looped beak sculpturing; white internal coloring; olive external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 100 - 120 mm in length and was assessed to be relatively-recently dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Pyganodon grandis, Specimen #878

Pyganodon grandis, Specimen #878

Date: July 20, 1974
Creator: Britton, Joseph
Description: One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thin shell; double looped beak sculpturing; bluish-white internal coloring; olive external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures between 60 - 100 mm in length and was assessed to be recently dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Leptodea fragilis, Specimen #511

Leptodea fragilis, Specimen #511

Date: July 18, 1973
Creator: Britton, Joseph
Description: One preserved mussel specimen including the right valve only. The specimen exhibits a rhomboidal shape; thin shell; double looped beak sculpturing; white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures over 120 mm in length and was assessed to be long dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Leptodea fragilis, Specimen #510

Leptodea fragilis, Specimen #510

Date: July 18, 1973
Creator: Britton, Joseph
Description: One preserved mussel specimen including the right valve only. The specimen exhibits an oval shape; thin shell; double looped beak sculpturing; white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1350

Utterbackia imbecillis, Specimen #1350

Date: August 16, 1979
Creator: Britton, Joseph
Description: One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thin shell; double looped beak sculpturing; white internal coloring; tan external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures between 0 - 60 mm in length and was assessed to be long dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Leptodea fragilis, Specimen #513

Leptodea fragilis, Specimen #513

Date: July 18, 1973
Creator: Britton, Joseph
Description: One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; thin shell; double looped beak sculpturing; white internal coloring; tan external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum