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
The Thing About Jellyfish The Thing About Jellyfish The Thing About Jellyfish is a 2015 children's novel written by Ali Benjamin, her fiction debut. The book follows Suzy Swanson, the protagonist and narrator, who theorizes the death of her friend, Franny Jackson, was caused by a jellyfish sting. Suzy has just started the seventh grade, which is the second year at Eugene Field Middle School in fictional South Grove, Massachusetts. During their sixth grade year, Franny became interested in boys and started to join a more popular social circle than the sometimes awkward Suzy, who had been best friends with Franny starting shortly after