Cell lineage and gene expression in the development of polychaetes -- Trochophora larvae and adult body regions in annelids: some conclusions -- Comparative structure of the epidermis in polychaetes (Annelida) -- Chaetae and chaetogenesis in polychaetes (Annelida) -- Sense organs in polychaetes (Annelida) -- Morphology of the nervous system of Polychaeta (Annelida) -- Muscular system in polycha…