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
Y.Bird from Jellyfish Island Y.Bird from Jellyfish Island Y.BIRD from Jellyfish Island is a series of periodically released single albums, created by Jellyfish Entertainment's CEO Hwang Se-jun for the purpose of showing the different sides of their artists to the public. Jellyfish Entertainment artists who have participated in the project so far have been Lee Seok Hoon, Seo In-guk, VIXX and VIXX member Leo. Y.Bird from Jellyfish Island with Lee Seok Hoon by South Korean singer, Lee Seok Hoon. It was released on June 14, 2012, under the Jellyfish Entertainment label and was the first in the Y.Bird from Jellyfish Island project. "Y.BIRD from