Image of the Week - January 24, 2006

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Pedicellariae on Starfish (Labidiaster annulatus) Arm

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.

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Uploaded Tue Jan 24 11:37:37 2006 by Catherine Lee Topham

Updated Wed Feb 3 09:43:18 2010 by Daniel E. Weber