Northeast Atlantic coast: tiny, harmless, translucent sea creatures from two to three inches across that resemble jellyfish but do not actually sting their food.

Southeast Atlantic coast: usually about six to eight inches in diameter, a jellyfish that is mildly venomous and identifiable by its four pink horseshoe-shaped markings.

Northeast Pacific coast: up to about fifteen inches in diameter, a jellyfish that doesn't have the long tentacles usually associated with its kind but a short fringe that sweeps food to its mucous layer right under the bell.
"When I was younger," said Sarah, "I would never go swimming when we went to the beach because I was terrified of finding a moon jelly."
by tomato-greens December 07, 2005

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