Related Clues:

• They lack ventral fins
• Elvers
• Fish that wriggle
• Slippery catches
• Lengthy fish
• Elver's elders
• They may be charged at sea
• Sniggler's pursuits
• Sushi ingredients, sometimes
• Sushi elements
• Unagi, in sushi
• Producers of currents in currents?
• Slippery sea creatures
• Grown grigs
• Wiggling fish