Related Clues:

• Edible snail-shaped shellfish
• Principally, Nemo's aboard, using this in leagues under sea
• The Navy's first nuclear sub
• Mollusc appears as gold among shimmering sunlit surroundings
• Marine gastropod
• Captain Nemo's vessel
• Sea creature to be found in the usual tin, unusually
• Land, having hoofed one back, edible shellfish
• First submarine
• First atomic submarine
• World's first nuclear submarine
• Edible gastropod to gather right away
• Nemo's sub in USA, until wrecked
• Mollusc and first nuclear-powered submarine
• Sea creature — as usual, it changed after new start