Amblema plicata, Specimen #72

One preserved mussel specimen including both the left and right valves. The specimen exhibits a quadrate shape; thick shell; single looped beak sculpturing; purplish-white internal coloring; dark brown external coloring; external sculpturing in the form of ridges. Collected in the San Jacinto basin. The specimen measures between 60 - 100 mm in length and was assessed to be very-recently dead when collected.
Date: 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Amblema plicata, Specimen #73

One preserved mussel specimen including both the left and right valves. The specimen exhibits a quadrate shape; thick shell; single looped beak sculpturing; purplish-white internal coloring; reddish-brown external coloring; external sculpturing in the form of ridges. Collected in the San Jacinto basin. The specimen measures between 60 - 100 mm in length and was assessed to be very-recently dead when collected.
Date: 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Cyrtonaias tampicoensis, Specimen #179

One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; moderately thick shell; single looped beak sculpturing; white internal coloring; reddish-brown external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures between 0 - 60 mm in length and was assessed to be relatively-recently dead when collected.
Date: January 22, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Cyrtonaias tampicoensis, Specimen #180

One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; moderately thick shell; single looped beak sculpturing; white internal coloring; brown external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures between 0 - 60 mm in length and was assessed to be relatively-recently dead when collected.
Date: January 22, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Cyrtonaias tampicoensis, Specimen #181

One preserved mussel specimen including the left valve only. The specimen exhibits an oval shape; moderately thick shell; single looped beak sculpturing; white internal coloring; brown external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures between 0 - 60 mm in length and was assessed to be relatively-recently dead when collected.
Date: January 22, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Lampsilis hydiana, Specimen #461

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 San Jacinto basin. The specimen measures between 60 - 100 mm in length and was assessed to be recently dead when collected.
Date: November 1, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Leptodea fragilis, Specimen #524

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 San Jacinto basin. The specimen measures between 100 - 120 mm in length and was assessed to be recently dead when collected.
Date: November 1, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Leptodea fragilis, Specimen #525

One preserved mussel specimen including both the left and right valves. The specimen exhibits a rhomboidal shape; thin shell; double looped beak sculpturing; bluish-white internal coloring; tan external coloring; no external sculpturing. Collected in the San Jacinto basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date: November 1, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Quadrula mortoni, Specimen #1105

One preserved mussel specimen including both the left and right valves. The specimen exhibits a round shape; moderately thick shell; white internal coloring; brown external coloring; external sculpturing in the form of pustules. Collected in the San Jacinto basin. The specimen measures between 60 - 100 mm in length and was assessed to be relatively-recently dead when collected.
Date: November 1, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Quadrula mortoni, Specimen #1106

One preserved mussel specimen including both the left and right valves. The specimen exhibits a round shape; moderately thick shell; white internal coloring; brown external coloring; external sculpturing in the form of pustules. Collected in the San Jacinto basin. The specimen measures between 60 - 100 mm in length and was assessed to be recently dead when collected.
Date: November 1, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Quadrula mortoni, Specimen #1107

One preserved mussel specimen including both the left and right valves. The specimen exhibits a round shape; moderately thick shell; white internal coloring; brown external coloring; external sculpturing in the form of pustules. Collected in the San Jacinto basin. The specimen measures between 60 - 100 mm in length and was assessed to be relatively-recently dead when collected.
Date: November 1, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Quadrula mortoni, Specimen #1108

One preserved mussel specimen including both the left and right valves. The specimen exhibits a round shape; moderately thick shell; white internal coloring; brown external coloring; external sculpturing in the form of pustules. Collected in the San Jacinto basin. The specimen measures between 60 - 100 mm in length and was assessed to be recently dead when collected.
Date: November 1, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Quadrula mortoni, Specimen #1109

One preserved mussel specimen including both the left and right valves. The specimen exhibits a round shape; moderately thick shell; white internal coloring; brown external coloring; external sculpturing in the form of pustules. Collected in the San Jacinto basin. The specimen measures between 0 - 60 mm in length and was assessed to be recently dead when collected.
Date: November 1, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Uniomerus tetralasmus, Specimen #1248

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; dark brown external coloring; no external sculpturing. Collected in the Red River basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date: April 4, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Uniomerus tetralasmus, Specimen #1249

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; reddish-brown external coloring; no external sculpturing. Collected in the Red River basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date: April 4, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Uniomerus tetralasmus, Specimen #1250

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; dark brown external coloring; no external sculpturing. Collected in the Red River basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date: April 4, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Uniomerus tetralasmus, Specimen #1251

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; reddish-brown external coloring; no external sculpturing. Collected in the Red River basin. The specimen measures between 60 - 100 mm in length and was assessed to be relatively-recently dead when collected.
Date: April 4, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Uniomerus tetralasmus, Specimen #1252

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; dark brown external coloring; no external sculpturing. Collected in the Red River basin. The specimen measures between 0 - 60 mm in length and was assessed to be long dead when collected.
Date: April 4, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Uniomerus tetralasmus, Specimen #1253

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thin shell; bluish-white internal coloring; reddish-brown external coloring; no external sculpturing. Collected in the Red River basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date: April 4, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Utterbackia imbecillis, Specimen #1323

One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; thin shell; double looped beak sculpturing; bluish-white internal coloring; green external coloring; no external sculpturing. Collected in the San Jacinto basin. The specimen measures between 0 - 60 mm in length and was assessed to be relatively-recently dead when collected.
Date: October 23, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Utterbackia imbecillis, Specimen #1324

One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; thin shell; double looped beak sculpturing; bluish-white internal coloring; tan external coloring; no external sculpturing. Collected in the San Jacinto basin. The specimen measures between 0 - 60 mm in length and was assessed to be relatively-recently dead when collected.
Date: October 23, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Utterbackia imbecillis, Specimen #1325

One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; thin shell; double looped beak sculpturing; bluish-white internal coloring; green external coloring; no external sculpturing. Collected in the San Jacinto basin. The specimen measures between 0 - 60 mm in length and was assessed to be relatively-recently dead when collected.
Date: October 23, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Utterbackia imbecillis, Specimen #1326

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; tan external coloring; no external sculpturing. Collected in the Brazos basin. The specimen measures between 60 - 100 mm in length and was assessed to be long dead when collected.
Date: January 22, 1976
Creator: Britton, Joseph
System: The UNT Digital Library

Utterbackia imbecillis, Specimen #1389

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; brown external coloring; no external sculpturing. The specimen measures between 0 - 60 mm in length and was assessed to be recently dead when collected.
Date: November 1, 1976
Creator: Britton, Joseph
System: The UNT Digital Library