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compass jellyfish
Chrysaora hysoscella
38.6412, 0.0464135
Field Notes
Description:
It has a diameter of up to 30 cm. Its 24 tentacles are arranged in eight groups of three. It is usually colored yellowish white, with some brown.
The compass jellyfish has a saucer-shaped bell, with 32 semi-circular lobes around the fringe, each one with a brown spot. On the upper surface of the bell, 16 brown V-shaped marks radiate outwards from a dark central spot. The mouth, the only opening to the exterior, is located on the centre of the underside of the bell, and is surrounded by 4 arms.
Compass jellyfish change sex: first they are male, followed after by female. The medusae live mainly off other medusae, comb jellyfish and arrow worms.
The stinging cells and venom of Chrysaora hysoscella are strong and can produce painful, long lasting weals in humans.
Habitat:
Chrysaora hysoscella, also known as the compass jellyfish, is a very common species of jellyfish that lives in coastal waters of the Atlantic and Mediterranean, including near the United Kingdom and Turkey.
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