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B
Dentalium
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C
Neopilina
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D
Both B and C
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Solution
The correct option is ADentalium Dentalium is a genus of tooth shells or tusk shells, marine scaphopod molluscs belonging to the family Dentaliidae. In this, tentacles are replaced by captacula. Captacula is a number of minute tentacles present around the foot. They sift through the sediment and latch onto food. The captured food is then conveyed to the mouth.