- Japanese Common Name
- Futohenatari
- Scientific name
- Certhidea rhizophorarum
- Taxonomy
- Order: Sorbeoconcha, Family: Potamididae
- Size
- About 4 cm (length of its shell)
- Species Distribution
- Within Japan, it is found in Matsushima Bay in Miyagi prefecture and southward. Overseas distribution includes coastal areas of China, Vietnam, and the Korean Peninsula.
- Okinawan Common Name
- Chinbowrah (general term for sails such as B. multiformis and Cerithidea cingulata)
- Japan Red List of Threatened Species: Near Threatened
- Because of the shapes and sizes, it used to be thought of as a subspecies of those found in mainland. However, a recent DNA analysis indicated that the species in Okinawa is a variety of the species found in other areas of Japan. This species can be found in bottoms comprised of mud and sand mixtures found in bays, mangroves, and tidelands.
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- Updated December 2018
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