NO. 1993. WEW PHILIPPINE LAND SHELLS— BARTSOH. 553 



EXPLANATION OF PLATE 43. 

 (All figures are natural size.) 



Fig. 1. Obba worcesteri, top view. Type. See page 549. 



2. Obba worcesteri, profile view. Type. 



3. Obba worcesteri, basal view. Type. 



4. Cochlostyla olanivanensis, top view. Type. See page 551. 



5. Cochlostyla olanivanensis, profile view. Type. 



6. Cochlostyla olanivanensis, basal view. 



7. Cochlostyla olanivanensis, profile view. 



8. Cochlostyla olanivanensis, basal view. Type. 



11. Cochlostyla olanivanensis, basal view. 



Figures 6, 7, and 11 showing the variations of the dark basal area. 



9. Cochlostyla calusaensis, profile view. See page 550, 

 10. Cochlostyla calusaensis, profile view. 



12. Cochlostyla calusaensis, top view. Type. 



13. Cochlostyla calusaensis, profile view. Type. 



14. Cochlostyla calusaensis, basal view. Type. 



Figures 9, 10, and 13 show variations in size and shape of shell. 



