Plate 57. AQUIA GLOBIGERINA AND GLOBOROTALIA 



(All figures: a, spiral view; b, umbilical view; C, edge view; all X 145) 



Page 

 Figures 1, 2. Glohorotalia trichotrocha Loeblich and 195 

 Tappan, new species 



1, Holotype (USNM P5355). 2, Paratype 

 (USNM P5705). Specimens show the small 

 size, relatively small, subangular-truncate cham- 

 bers, of nearly equal breadth and height, spinose 

 surface, subangular periphery, and small umbil- 

 icus. 

 Figures 3, 4. Glohorotalia perdara Loeblich and 191 

 Tappan, new species 



Paratypes (USNM P5826a, b), showing robust 

 test, with chambers flattened on the spiral side, 

 but elevated near the periphery. 

 294 



Page 



Figures 5, 6. Glohorotalia convexa Subbotina 188 



Hypotypes (USNM P5846a, b), showing 

 gently rounded spiral side and inflated umbilical 

 side, curved sutures, spinose surface, and low 

 aperture with narrow bordering lip. 

 Figure 7. Glohorotalia esnaensis {'i) (Le Roy) 189 



Hypotype (USNM P5878), which is relatively 

 high spired for this species, but otherwise similar. 

 Figure 8. Globigerina mckannai White 181 



Hypotype (USNM P5120), showing numerous 

 chambers and whorls, flattened spiral side and 

 inflated and broadly umbilicate umbilical side, 

 and, in this specimen a tiny and bulla-like final 

 chamber. 



