Jellyfish canal. Cilia in these canals circulate the fluid in a regular direction. The box jellyfish is largely similar in structure. It has a squarish, box-like bell from each of the four lower corners of which hang a short pedalium or stalk which bears one or more long, slender tentacles. The rim of the bell is folded inwards to form a shelf known as a velarium which restricts the bell's aperture and creates a powerful jet when the bell pulsates, allowing box jellyfish to swim faster than true jellyfish. Hydrozoans are also similar, usually with just four tentacles at the edge
Jumpin' Jellyfish Jumpin' Jellyfish Jumpin' Jellyfish is a Paratower, a parachute jump–style ride at Disney California Adventure at the Disneyland Resort in Anaheim, California and Tokyo DisneySea at Tokyo Disney Resort in Japan. The attraction's name comes from the jellyfish-themed parachute ride vehicles, the bubble and , kelp-themed towers. Jumpin' Jellyfish has a sister-themed attraction that opened in September 2001 at Tokyo DisneySea. This attraction is similar to that of the former Maliboomer, but scaled down to more child-sized proportions and rethemed. The Maliboomer required riders to be at least tall, whereas Jumpin' Jellyfish only requires riders to be at least .