306 _ FORAMINIFERA 



Genus HASTIGERINA Wyville Thomson, 1876 

 Plate 47, figures 6, 7; plate 48, figure 8 



Genoholotype, Hastigerina ynurrayi Wyville Thomson = Nonionina pelagica 



d'Orbigny, 1839 

 Hastigerina Wyville Thomson, Proc. Roy. Soc, vol. 24, 1876, p. 534. 

 Nonionina (part) of authors. 



Lihiola (part) Jones and Parker, 1860 (not Lamarck). 

 Globigerina (part) Parker and Jones, 1865 (not d'Orbigny). 



Test with the early chambers trochoid, later ones planispiral, 

 involute; wall calcareous, perforate, with comparatively coarse 

 spines, flattened, the edges parallel and toothed, each spine on 

 a base projecting from the surface; aperture large, at the 

 umbilical margin of the chamber. 



Late Tertiary and Recent. 



Genus HASTIGERINELLA Cushman, 1927 



Plate 47, figure 8; plate 48, figure 9 

 Genoholotype, Hastigerina digitata Rhunibler 



HastigerineUa Cushman, Contr. Cushman Lab. Forani. Res., vol. 3, 1927, 



p. 87. 

 Hastigerina (part) Rhumbi,er, 1911. 



Test similar to Hastigerina in the young, in the adult the 

 chambers elongate, club-shaped, the spines limited to the outer 

 ends of the chambers. 



Late Tertiary and Recent. 



Subfamily 2. Orbulininae 



Test in the early stages trochoid like Globigerina, later 

 developing a globular chamber entirely enclosing the earlier 

 ones which may be later resorbed ; wall often of several layers 

 with perforations of various sizes, occasionally large openings 

 which are apparently accidental; exterior with fine spines. 



Genus ORBULINA d'Orbigny, 1826 



Plate 47, figures 9, 10; plate 48, figure 4 

 Genoholotype, Orhidiyia universa d'Orbigny 

 Orbulina d'Orbigny, in De la Sagra, His. Fis. Pol. Nat. Cuba, 1839, vol. 



2, pt. 2, "Foraminiferes", p. 3. 

 Globigerina (part) of authors. 



