Saw-toothed pen shell [Atrina seminuda] with other bivalve shells in the surf zone of the Gulf of Mexico beach. Padre Island National Seashore, Texas.
0505-1007D ~ Copyright: George H. H. Huey ~ Saw-toothed pen shell [Atrina seminuda] with other bivalve shells in the surf zone of the Gulf of Mexico beach. Padre Island National Seashore, Texas.