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Cephalopoda, class of predatory mollusks including the cuttlefish, octopus, and squid. They swim by forcing a jet of water through a narrow funnel near the mouth. Cephalopods have sucker-bearing arms and a horny beak. The shell, typical of most mollusks, is absent or reduced.

Cephalosporins [next] [back] Century of Progress Exposition

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