Some of the mollusks that swim are here illustrated.
SOME OF THE VARIOUS METHODS SOME MOLLUSKS USE TO SWIM ARE ILLUSTRATED HERE.
Read more in the journal publication article by Farmer, Wesley M. 1970. Swimming Gastropods (Opisthobranchia and Prosobranchia) THE VELIGER Vol. 13; No. 1; 3 Tables, 20 Figures; pages 73-89.
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Lower left: Pleurobranchus tuberculatus using the sides of notum or mantle edge making a progressive wave to swim through the water. Upper left: Coryphella iodinea swims by lateral bending of the body. Upper right: Olivella zanoeta uses the metapodium to raise its shell out of the way of advancing sea stars or starfish. Lower right: Coryphella cynara swims by a "breast stroke" action of its cerata. One animal did this for 45 minutes before stopping.
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