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
Jellyfish Entertainment in the second season of the television survival show "Produce 101". On April 10, 2017, actress Cho Hye-jung joined Jellyfish Entertainment. In June 2017, actress Jung So-min joined Jellyfish Entertainment. In August 2017, Jellyfish 32% shares was acquired by CJ E&M, which previously acquired 19% of Jellyfish's shares in 2013 and effectively becoming Jellyfish Entertainment largest shareholder after having 51%. The following month, Gugudan 5959 was formed as the sub-unit of Gugudan, composed of Hyeyeon and Mina. On August 16, 2017, indie soloist Jang Hye-jin joined Jellyfish Entertainment. Soloists Groups Sub-units Source: Source: Distributing labels Jellyfish Entertainment Jellyfish Entertainment (),