Pinacoderm

The pinacoderm is the outer most layer of cells (pinacocytes) surrounding the body of organisms belonging to the phylum Porifera (sponges), equivalent to the epidermis in other organisms. ==Structure== The pinacocytes (a type of cells) that form pinacoderm are on the external surface of the sponge body and are characterized as an epithelial layer ...
Found on http://en.wikipedia.org/wiki/Pinacoderm

pinacoderm

(from the article `sponge`) Pinacocytes form the pinacoderm, a single cell layer found on the body surface and lining the canals. Various types of pinacocytes ...
Found on http://www.britannica.com/eb/a-z/p/68
No exact match found