Kendalli, after Aperichtus kendalli, the Western Atlantic finless eel. Because it has no fin, and reminds me of an eel.
Speaking of eels, Flotsam and Jetsam are Ursula's eels in The Little Mermaid (mygirl loves that movie). Flotsam is stuff thrown overboard into water as a result of shipwreck, and Jetsam is stuff thrown overboard to lighten the load. Either could work, but aren’t very common terms. Now I’m thinking of aquatic themes and names, like Swashbuckler, or The Shipwrecker…
Then, there are aquatic creatures without fins, like Sea Snakes. Hagfish, also known as a Slime Eel. Eel Fish. Skate Fish, aka Sting Ray. Lots of good names to be found… Unda da sea!!