Underwater ink squirter

• Creature with three hearts
• What "ika" is on sushi menus
• A giant one is rarely seen
• Bait for tuna
• Calamari, essentially
• Inky sea creature
• Fish bait
• Ink producer
• Widely distributed fast-moving ten-armed cephalopod mollusk having a long tapered body with triangular tail fins

Wikipedia Word definitions in Wikipedia