Pinacoderm is
name of body wall of coelenterates
outer body layer of sponges
inner body layer
middle layer of body wall
Body Wall of Porifera -
The body wall of sponges can be differentiated into the following layers:
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The outermost layer called outer epithelium or pinacoderm. It is made up of cells called pinacocytes. These cells are scalelike and thin with a prominent nucleus.