29 Matching Results

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Pyganodon grandis, Specimen #872

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.
Date: July 20, 1974
Creator: Britton, Joseph
Object Type: Specimen
System: The UNT Digital Library

Pyganodon grandis, Specimen #874

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.
Date: July 20, 1974
Creator: Britton, Joseph
Object Type: Specimen
System: The UNT Digital Library

Potamilus purpuratus, Specimen #717

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 Brazos basin. The specimen measures between 60 - 100 mm in length and was assessed to be live when collected.
Date: July 20, 1974
Creator: Britton, Joseph
Object Type: Specimen
System: The UNT Digital Library

Potamilus purpuratus, Specimen #718

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 Brazos basin. The specimen measures between 60 - 100 mm in length and was assessed to be live when collected.
Date: July 20, 1974
Creator: Britton, Joseph
Object Type: Specimen
System: The UNT Digital Library
Survival of Azotobacter in Dry Soil (open access)

Survival of Azotobacter in Dry Soil

Article on the survival of Azotobacter in dry soil.
Date: July 1974
Creator: Vela, G. Roland, 1927-
Object Type: Article
System: The UNT Digital Library