Related Clues:

• Unagi, in Japanese restaurants
• It has electric organs
• Lamprey or conger, e.g.
• Sushi servings
• Grownup elver
• Aquatic shockers
• Long-bodied swimmer
• This may shock you
• Bioelectric critters, perhaps
• Undulating swimmers
• Seals' meals
• Slim swimmers
• Scaleless wonders
• Swimmer with a current
• Lamprey