Cannonball Jelly [Stomolophus fritillarius]

Cannonball Jelly
Description

Divers may spot this jellyfish drifting like a slow, floating “cannonball,” with a bell that can look thick and rounded. Its tentacles trail beneath, and when it moves, the bell pulses in a way that makes it seem to glide rather than swim.

Taxonomy
Phylum Cnidarians
Cnidaria
Class Jellyfish and their relatives
Medusozoa
Order Cup Animals
Scyphozoa
Family Jellyfish (disc jellyfish)
Discomedusae
Genus Rhizostome Jellyfish
Rhizostomeae
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