アメリカ自然史博物館のインスタグラム(amnh) - 7月8日 05時04分

The flower urchin (Toxopneustes pileolus) is one of the world’s most dangerous sea urchins. It inhabits the seafloor of Indo-West Pacific waters. This echinoderm earned its name for its flower-like appendages, some of which are quite treacherous. Harmless stalks include tube feet, with suction cups at the tip, and spines. Others, called pedicellariae, have claws that can inject a neurotoxin. The venom produces pain and paralysis, which can prove lethal to swimmers and divers.
Photo: Philippe Bourjon, CC-BY-SA-3.0

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