Utterbackia imbecillis, Specimen #1280

One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; thin shell; double looped beak sculpturing; bluish-white internal coloring; green external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 0 - 60 mm in length and was assessed to be long dead when collected.
Date: December 6, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Potamilus ohiensis, Specimen #648

One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; thin shell; pink internal coloring; olive external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures over 120 mm in length and was assessed to be long dead when collected.
Date: December 31, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Potamilus ohiensis, Specimen #647

One preserved mussel specimen including the left valve only. The specimen exhibits an oval shape; thin shell; pink 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 long dead when collected.
Date: December 31, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Potamilus purpuratus, Specimen #649

One preserved mussel specimen including both the left and right valves. The specimen exhibits a rhomboidal shape; thick shell; pink internal coloring; brown external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 100 - 120 mm in length and was assessed to be live when collected.
Date: October 22, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Potamilus purpuratus, Specimen #650

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thick shell; pink internal coloring; brown external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be live when collected.
Date: October 22, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Potamilus purpuratus, Specimen #651

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thick shell; white internal coloring; brown external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 100 - 120 mm in length and was assessed to be live when collected.
Date: October 22, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Potamilus purpuratus, Specimen #653

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thick shell; salmon internal coloring; brown external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 100 - 120 mm in length and was assessed to be live when collected.
Date: October 22, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Potamilus purpuratus, Specimen #652

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thick shell; pink internal coloring; olive external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be live when collected.
Date: October 22, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Potamilus purpuratus, Specimen #654

One preserved mussel specimen including both the left and right valves. The specimen exhibits a rhomboidal shape; thick shell; pink internal coloring; dark brown external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 100 - 120 mm in length and was assessed to be live when collected.
Date: October 22, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Potamilus purpuratus, Specimen #655

One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; thick shell; salmon internal coloring; brown external coloring; no external sculpturing. Collected in the Trinity basin. The specimen measures between 100 - 120 mm in length and was assessed to be live when collected.
Date: October 22, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Leptodea fragilis, Specimen #492

One preserved mussel specimen including both the left and right valves. The specimen exhibits a rhomboidal 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 100 - 120 mm in length and was assessed to be long dead when collected.
Date: December 31, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Amblema plicata, Specimen #50

One preserved mussel specimen including both the left and right valves. The specimen exhibits a quadrate shape; thick shell; single looped beak sculpturing; white internal coloring; brown external coloring; external sculpturing in the form of ridges. Collected in the Trinity basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date: October 25, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Pyganodon grandis, Specimen #841

One preserved mussel specimen including both the left and right valves. The specimen exhibits a round shape; thin shell; double looped beak sculpturing; white internal coloring; brown 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.
Date: December 6, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Pyganodon grandis, Specimen #843

One preserved mussel specimen including the right valve only. The specimen exhibits a round 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 100 - 120 mm in length and was assessed to be recently dead when collected.
Date: December 6, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Pyganodon grandis, Specimen #842

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; brown 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.
Date: December 6, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Pyganodon grandis, Specimen #798

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 Brazos basin. The specimen measures between 0 - 60 mm in length and was assessed to be recently dead when collected.
Date: December 31, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Pyganodon grandis, Specimen #799

One preserved mussel specimen including the left valve only. The specimen exhibits an elliptical shape; thin shell; double looped beak sculpturing; white internal coloring; reddish-brown external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures between 60 - 100 mm in length and was assessed to be relatively-recently dead when collected.
Date: December 31, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Pyganodon grandis, Specimen #800

One preserved mussel specimen including the right valve only. The specimen exhibits an oval 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: December 31, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Pyganodon grandis, Specimen #801

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: December 31, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Pyganodon grandis, Specimen #802

One preserved mussel specimen including the right 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: December 31, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Pyganodon grandis, Specimen #803

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: December 31, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Pyganodon grandis, Specimen #804

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: December 31, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Pyganodon grandis, Specimen #805

One preserved mussel specimen including the right valve only. The specimen exhibits an oval shape; thin shell; double looped beak sculpturing; white internal coloring; 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 recently dead when collected.
Date: December 31, 1970
Creator: Britton, Joseph
System: The UNT Digital Library

Pyganodon grandis, Specimen #806

One preserved mussel specimen including the right valve only. The specimen exhibits an oval shape; thin shell; double looped beak sculpturing; white internal coloring; 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 recently dead when collected.
Date: December 31, 1970
Creator: Britton, Joseph
System: The UNT Digital Library