Cannonball Jelly

The cannonball jellyfish (Stomolophus meleagris), also known as the cabbagehead jellyfish, is a species of jellyfish in the family Stomolophidae. Its common name derives from its similarity to a cannonball in shape and size. Its scientific name means “many mouthed hunter”. Its dome-shaped bell can reach 25 cm (10 in) in diameter. The rim is often colored with brown pigment. There are several known undescribed Stomolophus species found in the Pacific and South Atlantic that exhibit pale to blue pigment. They are genetically different from the individuals found in the North Atlantic - but are commonly misidentified as such. Underneath the body is a cluster of oral arms that extend out around the mouth. These arms function in propulsion and as an aid in catching prey. Cannonballs are prominent from North America's eastern seaboard to the Gulf of Mexico.

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