1. 
   Mesohyl
   The mesohyl, formerly known as mesenchyme, is the gelatinous matrix within a sponge. It fills the space between the external pinacoderm and the internal choanoderm. The mesohyl resembles a type of connective tissue and contains several amoeboid cells such as amebocytes, as well as fibrils and skele...
   Found op http://en.wikipedia.org/wiki/Mesohyl
   
   
2. 
   mesohyl
   (from the article `sponge`) ...sponge; the interior cells of the larva give rise, in the adult, to the cell layer (pinacoderm) and the different cells (e.g., archaeocytes, ... ...Consequently, the consumption of oxygen is related to the velocity of the current. Excretion occurs through both the oscu...
   Found op http://www.britannica.com/eb/a-z/m/76
   
   

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