title: The fine structure of polian vesicles of holothurians.
mesh_terms: D004447:Echinodermata / Q000166:cytology* / Q000378:metabolism / Q000502:physiology; D006025:Glycosaminoglycans / Q000378:metabolism; D006651:Histocytochemistry; D008854:Microscopy, Electron
chemical_list: D006025:Glycosaminoglycans