Scientific name: Cyanea capillata
But how large it is?
With tentacles up to 190 feet (57.91 meters) long and a bell diameter of almost 7 feet (2.13 meters) wide, some individuals even rival in size the blue whale (Source: OCEANA)
![Image](http://shamskm.com/forum/images/lions_mane_jellyfish_photo_by_dan_hershman.jpg)
Lion's Mane Jellyfish. Image credit: Dan Hershman (Source: Flickr)