28 BULLETIN 104, UNITED STATES NATIONAL MUSEUM. 



GLOBIGERINA REGULARIS D'Orbigny. 



Egger^ figures specimens under this name. A number of the Ga- 

 zelle stations from which he obtained specimens are in the eastern 

 and southern Atlantic. I have had no specimens that I could refer 

 to this species. 



GLOBIGERINA LINNEIANA (D'Orbigny)? 



Brady in the ClmUenger report (p. 598) refers D'Orbigny's Rosalina 

 inneiana to Glohigerina. The original specimens were from shore 

 sands of Cuba. There are numerous Cretaceous specimens referred 

 to this name following Brady's use of it in the CliaUemjer report. 

 No such form has appeared in the Albatross collections. 



Genus ORBULINA D'Orbigny, 1839. 



Orbulina D'Orbigny (type, 0. universa D'Orbigny), in De la Sagra, Hist. 

 Fis. Pol. Nat. Cuba, 1839, "Foraminiferes," p. 3.— H. B. Brady, Rep. 

 Voy. Challenger, Zoolog}^, vol. 9, 1884, p. 606. — Chapman, The Fora- 

 minifera, 1902, p. 206.— Cushman, Bull. 71, U. S. Nat. Mus., pt. 4, 

 1914, p. 13. 



Description. — Test in the early stages composed of several Glohige- 

 rina-Yike chambers rapidly increasing in size as added, finally entirely 

 surrounded by the adult chamber which is spherical, with numerous 

 small pores, and one large circular orifice, or occasionally more than 

 one; wall reticulated, in living condition with long, fine spines. 



This genus is evidently derived from Glohigerina, as a later devel- 

 opment for the young Globigerine stages have often been found within 

 the spherical chamber. Just what becomes of the earlier chambers 

 in the empt}^ globular chamber as usually found is not entirely known 

 but it is probably resorbed. They are more often found in smaller 

 than in larger spherical chambers. 



According to Chapman the geological history goes back to the 

 pre-Cretaceous. 



ORBULINA UNIVERSA D'Orbigny. 



Plate 5, figs. 2-9. 



"Polymorpha sphaerulae vitrae," Soldani, Testaceographia, vol. 1, pt. 2, 

 1791, p. 116, pi. 119, figs. I-N. 



Orbulina universa D'Orbigny, in De la Sagra, Hist. Fis. Pol. Nat. Cuba, 

 1839, "Foraminiferes," p. 3, pi. 1, fig. 1; in Barker, Webb, and Berthelot, 

 Hist. Nat. lies Canaries, vol. 2, pt. 2, "Foraminiferes," 1839, p. 122, pi. 1, 

 fig. 1; Foram. Bass. Tert. Vienne, 1846, p. 22, pi. 1, fig. 1. — Bailey, 

 Smiths. Contr., vol. 2, 1851, p. 9, pi., fig. 1. — Williamson, Rec. Foram. 

 Great Britain, 1858, p. 2, pi. 1, fig. 4. — Carpenter, Parker, and 

 Jones, Introd. Foram., 1862; p. 176, pi. 12, fig. 8. — Parker and Jones, 

 Philos. Trans., vol. 155, 1865, p. 364, pi. 16, figs. 13, 14.— Balkwill 

 and Wright, Proc. Roy. Irish Acad., ser. 2, vol. 3, 1882, p. 549. — Goes, 



' Abh. kon. bay. Akad. Wiss. Munchen, 01. II, vol. 18, 1893, p. 361, pi. 13, figs. 15-18. 



