Common name: Bamboo and silkworm outlines: Pterisaceae production and production period:
There are distributions along the coast of China. Live in the estuary or with a small amount of fresh water injected into the soft sand beach in the intertidal zone in the inner and lower zones. Many places have been artificially raised.
Introduction:
Okinawa shells are 6-7 cm long, some are up to 14 cm wide and 1 cm wide, and the shells are usually 4 to 5 times the shell height. The dorsal edge of the shell is parallel to the ventral edge and is only slightly concave in the middle of the ventral edge. The top of the shell is located at the front end of the shell, the front and rear edges of the shell are truncated, and the back end is round. The two shells are bamboo-shaped and open at both ends. Shell crispy. Shell surface is smooth, greenish or tan shell, sometimes light red ribbons. The growth line is obvious, aligned along the trailing edge and the ventral edge. The inner surface of the shell is white or slightly purplish, and the reddish color ribbon is visible. The hinge is small, and each of the two shells has one main tooth. The long bamboo frog is similar to the big bamboo frog. The main difference is that the shell is extremely elongated, the shell length is 6-7 times the shell height, the shell is thin, and the two shells are equal.
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