Two color river clam specimen

Two color river clam specimen

The external characteristics of the shell range from medium to large. The shell beak is located at the front end. Thin shell. The true bead layer did not extend to the end. Lack of twisted teeth. The scar on the anterior adductor muscle is small and located at the front end, while the scar on the posterior adductor muscle is large and located in the center. There are no water pipes. Attach the front foot fibers to the substrate and bury them in the substrate with the back edge facing upwards.