What are the different classes of jellyfish in existence?

You can find the latest classes of Cnidaria on Worms, it is kept up to date: WoRMS - World Register of Marine Species - Cnidaria there are several classes that contain Jellyfish, Scyphozoa being the class of 'true jellies'. read more

With more than 350 different types of Jellyfish in the world, here we have listed the Top 10 Most Beautiful Types of Jellyfish on Planet Earth with facts and pictures. Jellyfish are thought to exist in the primitive times even before dinosaurs’ age as a result of which they are one of the oldest extant species in marine world. read more

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. read more

Different species thrive under different climactic conditions, and jellyfish are known to exist in the coldest waters of the Arctic Oceans to the warm temperate waters that surround Australia. Very few species are able to survive across different climactic conditions, and most species can only be found in specific locations under specific conditions. read more