Gastrocopta cristata (Pilsbry and Vanatta, 1900) Crested Snaggletooth On The Top
Gastrocopta riparia Pilsbry, 1916 Gulf Coast Snaggletooth On The Bottom

Scanning Electron Micrographs (SEM)

Gastrocopta cristata (Pilsbry and Vanatta, 1900) Crested Snaggletooth On The TopGastrocopta cristata (Pilsbry and Vanatta, 1900) Crested Snaggletooth On The Top

Gastrocopta riparia Pilsbry, 1916 Gulf Coast Snaggletooth

    Drift associated with major flooding of the Brazos River, Quintana Beach County Park, Freeport, Brazoria County, Texas.  Steve Rosenthal! 24, 25, 27 June, 2016. SEMs produced in collaboration with Dr. Ann Heatherington, Dept. Geological Sciences, University of Florida, Gainesville, FL.

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