Ultrastructure and histochemistry of the integument of air-breathing polychaetes from mangrove swamps of sumatra

摘要: The integument of S.E. Asian air-breathing polychaetes exhibits a variable ultrastructure with regard to cuticle and epithelial cells. varies in thickness, contents regularly arranged collagen fibrils, structure the epicuticle. basal portion epithelium is either smooth outline, or consists slender processes epidermal cells separated by wide intercellular spaces which are invaded loose system glia nerve fibres. Extracellular within epidermis gills Dendronereides heteropoda transformed into blood lacunae. enzyme content relatively low.