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Dacus Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date: 1975
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Truncilla truncata, Specimen #1232

One preserved mussel specimen including both the left and right valves. The specimen exhibits a triangular shape; thick shell; white internal coloring; brown 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 recently dead when collected.
Date: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Fusconaia sp., Specimen #257

One preserved mussel specimen including both the left and right valves. The specimen exhibits a quadrate shape; moderately thick shell; single looped beak sculpturing; white internal coloring; brown 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 relatively-recently dead when collected.
Date: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Truncilla truncata, Specimen #1233

One preserved mussel specimen including both the left and right valves. The specimen exhibits a triangular shape; thick shell; white internal coloring; brown 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 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Truncilla truncata, Specimen #1234

One preserved mussel specimen including both the left and right valves. The specimen exhibits a triangular shape; thick shell; white internal coloring; brown 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 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Potamilus purpuratus, Specimen #599

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thick shell; pink internal coloring; black 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: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Potamilus purpuratus, Specimen #600

One preserved mussel specimen including both the left and right valves. The specimen exhibits an oval shape; thick shell; pink internal coloring; black 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: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Potamilus purpuratus, Specimen #601

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; thick shell; pink internal coloring; green 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: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Leptodea fragilis, Specimen #473

One preserved mussel specimen including the left valve only. 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 100 - 120 mm in length and was assessed to be long dead when collected.
Date: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Leptodea fragilis, Specimen #474

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 100 - 120 mm in length and was assessed to be relatively-recently dead when collected.
Date: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Leptodea fragilis, Specimen #475

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 long dead when collected.
Date: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Leptodea fragilis, Specimen #476

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 100 - 120 mm in length and was assessed to be recently dead when collected.
Date: October 5, 1975
Creator: Britton, Joseph & Golightly, C.
Object Type: Specimen
System: The UNT Digital Library

Leptodea fragilis, Specimen #477

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: October 5, 1975
Creator: Britton, Joseph & Golightly, C.
Object Type: Specimen
System: The UNT Digital Library

Leptodea fragilis, Specimen #478

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 100 - 120 mm in length and was assessed to be recently dead when collected.
Date: October 5, 1975
Creator: Britton, Joseph & Golightly, C.
Object Type: Specimen
System: The UNT Digital Library

Leptodea fragilis, Specimen #479

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 relatively-recently dead when collected.
Date: October 5, 1975
Creator: Britton, Joseph & Golightly, C.
Object Type: Specimen
System: The UNT Digital Library

Leptodea fragilis, Specimen #480

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 100 - 120 mm in length and was assessed to be recently dead when collected.
Date: October 5, 1975
Creator: Britton, Joseph & Golightly, C.
Object Type: Specimen
System: The UNT Digital Library

Leptodea fragilis, Specimen #481

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 100 - 120 mm in length and was assessed to be recently dead when collected.
Date: October 5, 1975
Creator: Britton, Joseph & Golightly, C.
Object Type: Specimen
System: The UNT Digital Library

Leptodea fragilis, Specimen #482

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 60 - 100 mm in length and was assessed to be recently dead when collected.
Date: October 5, 1975
Creator: Britton, Joseph & Golightly, C.
Object Type: Specimen
System: The UNT Digital Library

Quadrula mortoni, Specimen #1092

One preserved mussel specimen including both the left and right valves. The specimen exhibits a moderately thick shell; dark 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 relatively-recently dead when collected.
Date: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Quadrula mortoni, Specimen #1093

One preserved mussel specimen including both the left and right valves. The specimen exhibits a 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: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Lampsilis teres, Specimen #325

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; moderately thick shell; 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 relatively-recently dead when collected.
Date: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Lampsilis teres, Specimen #326

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; moderately thick shell; 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: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Lampsilis teres, Specimen #327

One preserved mussel specimen including both the left and right valves. The specimen exhibits an elliptical shape; moderately thick shell; 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: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library

Quadrula mortoni, Specimen #944

One preserved mussel specimen including both the left and right valves. The specimen exhibits a round shape; moderately thick shell; white internal coloring; dark 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: October 5, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
Object Type: Specimen
System: The UNT Digital Library