The flower hat jelly (Olindias formosa) is a rare species of jellyfish occurring primarily in Brazil, Argentina, and off southern Japan. Characterized by lustrous tentacles that coil and adhere to its rim when not in use, the flower hat jelly’s bell is translucent and pinstriped with opaque bands, making it easily recognizable.
Its sting is nonlethal but painful, and its diet consists mostly of small fishes. The flower hat jelly can grow to be about 15cm (6 inches) in diameter. – wiki
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