- English Common Name
- Mermaid’s Wineglass
- Scientific name
- Acetabularia caliculus
- Taxonomy
- Order: Dasycladales, Family: Polyphysaceae
- Size
- 5 cm to 6 cm (length of stem)
- Species Distribution
- The Sea of Japan side, Pacific side of mainland Japan, Seto Inland Sea, Shikoku and Kyushu regions
- Okinawa Red List of Threatened Species: Critically Endangered and Endangered
- Japan Red List of Threatened Species: Critically Endangered and Endangered
- This species is related to, but smaller than Acetabularia ryukyuensis. It grows on seashells and dead coral gravels in shallow water areas such as seagrass beds. Common name in English is “Mermaid’s Wineglass.”
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- Updated July 2017
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