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Cyrtonaias tampicoensis, Specimen #175

Description: One preserved mussel specimen including the right valve only. The specimen exhibits an oval shape; moderately thick shell; single looped beak sculpturing; white internal coloring; tan external coloring; no external sculpturing. Collected in the Guadalupe basin. The specimen measures between 0 - 60 mm in length and was assessed to be relatively-recently dead when collected.
Date: December 22, 1976
Creator: Hagan, J.
Partner: Elm Fork Natural Heritage Museum

Utterbackia imbecillis, Specimen #1280

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; 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
Partner: Elm Fork Natural Heritage Museum