develops from develops from produces produces sclerocyte 2011-04-22T06:54:11Z cjm compare: "Cell involved in spicule secretion. In Demospon- ges, with intracellular secretion, sclerocytes are characterized by numerous mitochondria and the presence of spicule-axial filaments. In Calcarea, where secretion is extracellular, sclerocytes have septate junctions between them (sc in figure)." [http://www.portol.org/thesaurus] spicule secreting cells, found in sponges. They secrete calcareous or siliceous spicules which are found in the mesohyl layer of sponges. The sclerocytes produce spicules via formation of a cellular triad secretory cell archaeocyte spicule