Related Program: NatureNotes The Cannonball Jellyfish By Rudy Mancke • Mar 16, 2017 Related Program: NatureNotes TweetShareGoogle+Email Cannonball Jellyfish (Stomolophus meleagris) washed up on the beach at Fort Fisher, North Carolina. Mr.TinDC, via Flickr The Cannonball is one of the most common Jellyfish, and is food for the Leatherback Sea Turtle. Listen Listening... / 1:00 Click to Listen... NatureNotes is a production of South Carolina Public Radio. Tags: NatureNatureNotesmarine lifeSCETV AppTweetShareGoogle+EmailView the discussion thread. Related Content The Cownose Ray By Rudy Mancke • Jan 17, 2017 Virginia State Parks (Creative Commons 2.0), via Wikimedia Commons Rays, like the Cownose Ray, don't have teeth. Instead they have bony plates.