Octopus
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An octopus is a soft-bodied, eight-limbed mollusc of the order Octopoda. The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and nautiloids. Lik
Octopus 2
A giant Pacific octopus at Echizen Matsushima Aquarium, Japan
Diagram of octopus from side, with gills, funnel, eye, ocellus (eyespot), web, arms, suckers, hectocotylus and ligula labelled.
A finned Grimpoteuthis species with its atypical octopus body plan
Mollusca
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Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks. 86,600 extant species of molluscs are recognized, making it the second-largest animal phylum
Octopus
…An octopus (pl.: octopuses or octopodes) is a soft-bodied, eight-limbed mollusc of the order Octopoda (, ok-TOP-ə-də). The order consists of some 300 species and is grouped within the class Cephalopoda with squids, cuttlefish, and…
Cornu aspersum (formerly Helix aspersa)—a common land snail
Shell of Marisa cornuarietis, a freshwater snail
Fossilized ammonite displayed at the National Museum of the Philippines
Diversity and variability of shells of molluscs on display