Plate 61. NANAFALIA GLOBIGERINA AND GLOBOROTALIA 



(All figures: a, spiral view; b, umbilical view; C, edge view; all X14S) 



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Figures 1, 2, 9. Globorotalia esnaensis (Le Roy) 189 

 1, 2, Hypotypes (USNM PS876 a, b), showing 

 spinose surface, rapid increase in chamber size, 

 flattened spiral side and few chambers per whorl. 

 9, Small hypotype (USNM PS877), with rela- 

 tively high aperture which is largely extra- 

 umbilical in position. 181 

 Figure 3. Globigerina inaeqiiispira Subbotina 



Hypotype (USNM PS730), showing spinose 

 surface and inflated chambers. 

 Figure 4. Globorotalia convexa Subbotina 188 



Hypotype (USNM PS848), showing low cres- 

 centic chambers and backward curving sutures 

 on the spiral side, subacute periphery and radial 

 sutures, small umbilicus, and low aperture on the 

 umbilical side. 

 Figures. Globorotalia irrorata hoehlicha.ndT3Lppa.n, 191 

 new species 

 298 



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Holotype (USNM P5872), showing inflated 

 chambers, spinose wall, open umbilicus and 

 slightly flattened spiral side. 

 Figure 6. Globorotalia strabocella Loeblich and 195 

 Tappan, new species 



Holotype (USNM PS879), showing numerous 

 chambers, open umbilicus and flattened spiral 

 side. 

 Figure 7. Globorotalia tribulosa Loeblich and Tap- 195 

 pan, new species 



Holotype (USNM PS8S0), showing rapidly en- 

 larging globular chambers, spinose surface and 

 extraumbilical-umbilical aperture. 

 Figure 8. Globorotalia chascanona Loeblich and 180 

 Tappan, new species 



Paratype (USNM P5844), showing numerous 

 chambers, increasing gradually in size, spinose 

 surface and wide umbilicus. 



