EXPLANATION OF PLATE V. 
Fig. 9. B. Icershawi, Brazier, from the author’s type in the Australian 
Museum. 
„ 10. Apex of shell of P. atomata to show sculpture of embryonic 
shell, magnified. 
„ 11. Jaw of ditto, magnified. 
„ 12. Egg of Pedinogyra cunninghami, natural size. 
„ 13. Genitalia of P. atomata. 
