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Pedicellariae on Starfish (Labidiaster annulatus) Arm

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Created 1/24/2006

SEM image of a small portion of an arm (dorsal side) of the starfish Labidiaster annulatus, showing one of numerous jaw-like structures called pedicellariae, which average about 200 microns in length. This sample has been treated with sodium hypochlorite to remove most of the organic membrane covering the pedicellariae.


  • Cathy Topham , ITG, Beckman Institute
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