Species of Jellyfish

Most people think that all gelatinous,swimming marine animal encountered at the sea are "jellyfish" and  moreover that they all sting.

But not all jellyfish are stinging; many are harmless to humans, but it is always best to avoid touching them.

Here is a mini-guide to the main jellyfish species and the most recognizable gelatinous plankton species prevalent in our seas.

Click on the illustrations of each individual jellyfish to learn more about the respective species.

We would like to thank in particular Mr. Alberto Gennari, artist, for his original artwork, Mr. Fabio Tresca for the Image processing and Focus Magazine – Italia for providing some images of the jellyfish species and the format of this page.