Related Clues:

• Glass ___
• Elver's parent
• Moray
• Fish with a long nose
• Unagi and anago, at a sushi bar
• Long-nosed fish
• Marine predator
• Snaky swimmers
• Fish that may masquerade as a log
• Fish caught in a pot
• Sargasso Sea breeder
• Sniggler's pursuit
• Sometimes shocking swimmer?
• Electric fish
• Underwater predator