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These Purple-Striped Jellyfish are at the Monterey Bay Aquarium. It is a species of jellyfish that exists primarily off the coast of California in Monterey Bay. The bell (body) of the jellyfish is up to 2.3 feet in diameter, typically with a radial pattern of stripes.
Photo taken with a Canon EOS 40D, EF17-40mm f/4L lens, 1/80 sec at f/4.0, ISO 320 on SanDisk Extreme IV Digital Film.