Aequorea victoria, also sometimes called the crystal jelly, is a bioluminescent hydrozoan jellyfish, or hydromedusa, that is found off the west coast of North America.

The species is best known as the source of aequorin (a photoprotein), and green fluorescent protein (GFP); two proteins involved in bioluminescence. Their discoverers, Osamu Shimomura and colleagues, won the 2008 Nobel Prize in Chemistry for their work on GFP.

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