Utterbackia imbecillis, Specimen #1287

Utterbackia imbecillis, Specimen #1287

Date: August 23, 1974
Creator: Britton, Joseph
Description: One preserved mussel specimen including the left valve only. The specimen exhibits an oval shape; thin shell; double looped beak sculpturing; white internal coloring; off-white external coloring; no external sculpturing. Collected in the Nueces basin. The specimen measures between 0 - 60 mm in length and was assessed to be relatively-recently dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1290

Utterbackia imbecillis, Specimen #1290

Date: August 1, 1974
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; bluish-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.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1289

Utterbackia imbecillis, Specimen #1289

Date: August 23, 1974
Creator: Britton, Joseph
Description: One preserved mussel specimen including the left valve only. The specimen exhibits an oval shape; thin shell; double looped beak sculpturing; white internal coloring; no external sculpturing. Collected in the Nueces basin. The specimen measures between 0 - 60 mm in length and was assessed to be subfossil when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1288

Utterbackia imbecillis, Specimen #1288

Date: August 23, 1974
Creator: Britton, Joseph
Description: One preserved mussel specimen including the left valve only. The specimen exhibits an oval shape; thin shell; double looped beak sculpturing; white internal coloring; off-white external coloring; no external sculpturing. Collected in the Nueces 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
Utterbackia imbecillis, Specimen #1383

Utterbackia imbecillis, Specimen #1383

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; 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.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1382

Utterbackia imbecillis, Specimen #1382

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; green 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.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1381

Utterbackia imbecillis, Specimen #1381

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 60 - 100 mm in length and was assessed to be relatively-recently dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1384

Utterbackia imbecillis, Specimen #1384

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; green 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.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1367

Utterbackia imbecillis, Specimen #1367

Date: June 9, 1977
Creator: Britton, Joseph & Hagan, J.
Description: 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; olive external coloring; no external sculpturing. 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
Utterbackia imbecillis, Specimen #1364

Utterbackia imbecillis, Specimen #1364

Date: June 9, 1977
Creator: Britton, Joseph & Hagan, J.
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. 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
Utterbackia imbecillis, Specimen #1363

Utterbackia imbecillis, Specimen #1363

Date: June 9, 1977
Creator: Britton, Joseph & Hagan, J.
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; brown external coloring; no external sculpturing. 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
Utterbackia imbecillis, Specimen #1369

Utterbackia imbecillis, Specimen #1369

Date: June 9, 1977
Creator: Britton, Joseph & Hagan, 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; bluish-white internal coloring; olive external coloring; no external sculpturing. The specimen measures between 0 - 60 mm in length and was assessed to be relatively-recently dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1362

Utterbackia imbecillis, Specimen #1362

Date: June 9, 1977
Creator: Britton, Joseph & Hagan, J.
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; off-white external coloring; no external sculpturing. 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
Utterbackia imbecillis, Specimen #1370

Utterbackia imbecillis, Specimen #1370

Date: June 9, 1977
Creator: Britton, Joseph & Hagan, J.
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; olive external coloring; no external sculpturing. The specimen measures between 0 - 60 mm in length and was assessed to be relatively-recently dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1366

Utterbackia imbecillis, Specimen #1366

Date: June 9, 1977
Creator: Britton, Joseph & Hagan, J.
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; olive external coloring; no external sculpturing. 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
Utterbackia imbecillis, Specimen #1371

Utterbackia imbecillis, Specimen #1371

Date: June 9, 1977
Creator: Britton, Joseph & Hagan, J.
Description: One preserved mussel specimen including the right valve only. The specimen exhibits an elliptical shape; thin shell; double looped beak sculpturing; white internal coloring; olive external coloring; no external sculpturing. The specimen measures between 0 - 60 mm in length and was assessed to be relatively-recently dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1368

Utterbackia imbecillis, Specimen #1368

Date: June 9, 1977
Creator: Britton, Joseph & Hagan, J.
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; olive external coloring; no external sculpturing. 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
Utterbackia imbecillis, Specimen #1365

Utterbackia imbecillis, Specimen #1365

Date: June 9, 1977
Creator: Britton, Joseph & Hagan, J.
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; off-white external coloring; no external sculpturing. 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
Utterbackia imbecillis, Specimen #1321

Utterbackia imbecillis, Specimen #1321

Date: October 4, 1975
Creator: Britton, Joseph; Murphy, C.; Golightly, C. & Boone, Constance
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; 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 long dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1322

Utterbackia imbecillis, Specimen #1322

Date: October 4, 1975
Creator: Britton, Joseph; Boone, Constance; Murphy, C. & Golightly, C.
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; 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 long dead when collected.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1279

Utterbackia imbecillis, Specimen #1279

Date: October 6, 1971
Creator: Britton, Joseph & Mauldin, V.
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 Trinity 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
Utterbackia imbecillis, Specimen #1319

Utterbackia imbecillis, Specimen #1319

Date: June 1, 1977
Creator: Britton, Joseph; Hagan, J.; Graham & Champagne, L.
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 Savannah River 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
Utterbackia imbecillis, Specimen #1331

Utterbackia imbecillis, Specimen #1331

Date: June 5, 1975
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; 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.
Contributing Partner: Elm Fork Natural Heritage Museum
Utterbackia imbecillis, Specimen #1328

Utterbackia imbecillis, Specimen #1328

Date: June 5, 1975
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; 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.
Contributing Partner: Elm Fork Natural Heritage Museum
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