128 



Fig. 7. Calcareous deposits of Oph. serpentina 1 & 7—8, Oph. variabilis 2 & 6, 

 Oph. grisea 3 & 9, Oph. lineata 4, Oph. mauritiae 4 & 10. 1—5 anchors, 6 miliary 

 granules, 7 tentacle rods, 8—10 oral rods. 1—5 X 170, 6 X 450, 7—10 X 200. 



