296 FORAMINIFERA 



Genus CHILOSTOMELLA Reuss, 1850 



Plate 45, figures 3-7; plate 46, figure 8 

 Genoholotype, Chilostomella ovoidea Reuss 

 Chilostomella Reuss, Denkschr. k. Akad. Wiss. Wien, vol. 1, 1850, p. 379. 



Test fusiform, ovoid, or subcylindrical, in the early stages, 

 especially of the microspheric form, with the chambers as in 

 Allomorphina, but in the adult two chambers completing a coil, 

 each chamber making a half coil of 180° and embracing so that 

 but a small part of the base of the preceding chamber is visible 



EXPLANATION OF PLATE 45 



Chilostomellidae, Globigerinidae 



Fig. 



1, 2. AUomorphma trigova Reuss. X 40. (After H. B. Brady). Fig. 

 1, Ventral view. Fig. 2, Dorsal view. 



3-7. Chilostomella oolina Schwager. X 35. (After H. B. Brady). 

 Fig. 3, Ventral view. Fig. 4, Apertural view. Fig. 5, Dorsal 

 view. Fig. 6, Side view by transmitted light. Fig. 7, Partially 

 broken specimen. 



8-11. Chilostomelloides ovifnrmis (Sherborn and Chapman). X 12. 

 (After type figures). Figs. • 8, 9, Side views. Figs. 10, 11, 

 Apei-tures. 

 12, 13. Seahrookia pellncida H. B. Brady. X 135. (After type figures). 

 Fig. 12, a, ventral view; b, apertural view. Fig. 13, By trans- 

 mitted light. 



14. Allomorphinella contraria (Reuss). (After type figure). a, 



side view; b, ventral view; c, apertural view. 



15. ChilostomeUina fimbriata Cushman. (After type figui-e). a, 



dorsal view; b, ventral view; c, end view. 



16. PuUcnia quinqueloba Reuss. X 35. (After H. B. Brady), a, 



side view; b, apertural view. 



17. Sphaeroklma bnlloklea d'Orbigny. (After d'Orbigny's Model), a, 



side view; b, apertural view. 

 18, 19. Globigerina bulloides d'Orbigny. (After d'Orbigny's Models). 

 Fig. 17, Young. Fig. 18, Adult, a, dorsal view; b, ventral 

 view; c, peripheral view. 



20. Globigerma inflata d'Orbigny. X 35. (After H. B.Brady), a, 



dorsal view; b, ventral view; c, peripheral view. 



21. Globigerinoides rubra (d'Orbigny). X 35. (After H. B. Brady). 



a, dorsal view; b, ventral view; c, side view. 



22. Globigerinoides conglobata (H. B. Brady). X 35. (After H. B. 



Brady). Dorsal view. 



23. Globigerinoides sacculife7-a (H. B. Brady). X 35. (After H. B. 



Brady). Dorsal view. 



