Box jellyfish box-like bell, from which its name is derived. From each of the four lower corners of this hangs a short pedalium or stalk which bears one or more long, slender, hollow 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. As a result, box jellyfish can move more rapidly than other jellyfish; speeds of up to per minute have been recorded. In the center of the underside of the bell is a mobile appendage called the manubrium which
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 .