The Crown jellyfish (Cephea cephea) is also known as the cauliflower jellyfish, Hawaii. This species lives in open ocean with a lifespan of three to six months. As in other jellyfish species, the tentacles contain nematocysts that are used to stun, kill and capture prey items; Hawaii, United States of AmericaImage #: 33575939 See More From: Dave Fleetham