Fig. 6. Egg attachment system formed on the maternal ovigerous hair and its stripping after hatching. (A) The egg attachment system formed on an ovigerous hair. This system consists of a single layer with two sublayers (E1a, E1b). The fine structure of the attachment sites (enclosed by the open rectangle) is shown in C. (B) The egg attachment sites arranged at intervals of 130–160 nm on the maternal ovigerous hair. (C) Fine structure of the attachment of layer E1 to the ovigerous hair (left), and schematic drawing of this structure (right). A portion of the attachment site is shown by two small arrows (as). (D) Separation of layer E1 after the embryos have been immersed in hatch water (left), and its schematic drawing (right). Two small arrows (as) show a portion of the attachment sites separated from the investment coat (E1a). oh, maternal ovigerous hair. Scale bars, 100 nm.