248 FORAMINIFERA 



its elongate axis nearly at right angles to the base of the 

 chamber. 

 Cretaceous. 



Genus GLOBOBULIMINA Cushman, 1927 

 Plate 35, figure 19; plate 37, figure 12 

 Genoholotype, Glohohulhnina pacifica Cushman 

 Globobulimi7ia Cushman, Contr. Cushman Lab. Foram. Res., vol. 3, 1927, 



p. 67. 

 Bulimina (part) of authors. 



Test spiral, early chambers tending to elongate, later ones 

 extending backward and finally each chamber extending further 

 back and enclosing the preceding ones in its series, the last 

 three chambers making up the whole exterior; wall thin, cal- 

 careous, finely perforate; aperture loop-shaped with a tooth 

 or plate and internal tube. 

 Tertiary and Recent. 



Genus ENTOSOLENIA Ehrenberg, 1848 



Plate 35, figures 20-22; plate 37, figure 13 



Genotype, by designation, Entosoleyiia lineata Williamson 

 Entosolenia Ehrenberg, in Williamson, Ann. Mag. Nat. Hist., ser. 2, 



vol. 1, 1848, p. 5. 

 Cenchridium Ehrenbekg, Bericht. k. preuss. Akad. Wiss. Berlin, 1845, p. 



357 (genoholotype, Cenchridium sphaerula Ehrenberg, not figured). 

 Lagena (part) of authors. • 



Test monothalamous, the single chamber with an internal 

 tube free at the inner end ; wall usually thin, finely perforate ; 

 aperture elliptical or circular. 



Tertiary and Recent. 



Subfamily 4. Virgulininae 



Test usually showing traces of its spiral origin in the twisted 

 young, later biserial, and in the end forms uniserial. 



Genus VIRGULINA d'Orbigny, 1826 



Plate 36, figures 1, 2; plate 37, figure 7 



Genoholotype, Virgulina squammosa d'Orbigny 



Virgulina d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 267. 

 Strophoconus Ehrenberg, Bericht. k. preuss. Akad. Wiss. Berlin, 1843, p. 

 166 (genotype, by designation, Strophoconus auricula Ehrenberg). 



