234 FORAMINIFERA 



Subfamily 4. Bolivinitinae 



Test in the adult biserial, compressed ; aperture in the median 

 line, at the base of the inner margin. 



Genus BOLIVINOIDES Cushman, 1927 

 Plate 33, figure 11; plate 34, figure 6 



Genoholotype, Bolivina draco Marsson 



Bolivinoides Cushman, Contr. Cushman Lab. Foram. Res., vol. 2, 1927, 



p. 89. 

 Bolivina (part) of authors. 



Test compressed, rhomboid, the thickest portion near the 

 apertural end usually appearing like a thickened lip without 

 ornamentation, ornamentation in general at right angles to the 

 sutures, test mainly biserial ; wall calcareous, finely perforate ; 

 aperture fairly large, in the median line at the base of the 

 inner margin of the chamber. 



Upper Cretaceous. 



Genus BOLIVINITA Cushman, 1927 

 Plate 33, figures 12-14; plate 34, figure 7 



Genoholotype, TexUdaria quadrilatera Schwager 



Bolivinita CuSHMAN, Contr. Cushman Lab. Foram. Res., vol. 2, 1927, 



p. 90. 

 Textularia (part) of authors. 

 Bolivina (part) of authors. 



Test with the chambers biserial, the periphery and broader 

 sides all concave with strongly developed angles giving a 

 quadrate end view to the test ; wall calcareous, perforate ; aper- 

 ture large, at the base of the inner margin of the chamber in 

 the median line. 



Upper Cretaceous to Recent. 



Genus BOLIVINELLA Cushman, 1927 



Plate 33, figures 15, 16; plate 34, figure 8 

 Genoholotype, Textularia folium Parker and Jones 

 Bolivinella Cushman, Contr. Cushman Lab. Foram. Res., vol. 2, 1927, 



p. 79. 

 Textularia (part) of authors. 



