siphon

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siphon

zoology

Also known as: funnel

Learn about this topic in these articles:

bivalves

In bivalve: Food and feeding
…prey into a funnellike inhalant siphon (Cuspidaria). Food is then pushed into the mouth by the palps and foot. Others evert the inhalant siphon, like a hood, over the prey (Poromya and Lyonsiella). Prey items include small bottom-dwelling crustaceans, polychaete worms, and larvae of other benthic animals.
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cephalopods

In cephalopod: Locomotion
…and expelling it through the funnel. The rapid ejection of this jet of water enables the animal to execute quick backward and forward movements.
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gastropods

In gastropod: The mantle
…and rolled into a muscular siphon, which functions in both food location and chemoreception by allowing the snail to sample water in different directions.
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