i6 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I48 



In its early stages this species closely resembles Globigerina 

 dutertrei in having a broad, open umbilicus and a large umbilical 

 aperture. However, at about the end of the second whorl the 

 streptospiral coiling of Pulleniatina ohliquilocidata becomes apparent 

 and the chambers in the final whorl can be seen to deviate from the 

 axis of coiling of the earlier chambers when the test is viewed from 

 the dorsal side. Also, the later chambers of P. ohliquiloculata tend to 

 be elongate in their axis of coiling. 



5 6 7 



Fig. 2. — Some developmental stages in Pulleniatina obliquiloculata. 



Distribution. — This species was recorded mostly from the southern 

 stations and was most common in the winter, when it reached a 

 maximum frequency of 34 percent at station II. It was extremely 

 scarce in the summer and was recorded at only two stations (LL and 

 J J) with frequencies of 1 and less than 1 percent respectively. 



Genus GLOBIGERINITA Bronnimann, 1951 



GLOBIGERINITA GLUTINATA (Egger) 



Plate 3, figures 2, 4, 5 



Globigerina gluHnata Egger, 1893, Abhandl. K. Wiss. Miinchen, CI. II, vol. 18, 



p. 371, pi. 13, figs. 19-21. 

 Globigerinita glutinata Bradshaw, 1959, Contr. Cushman Found. Foram. Res., 



vol. 10, pt. 2, p. 40, pi. 7, figs, 7, 8.— Be, 1959, Micropaleontol., vol. 5, No. 1, 



pi. 1, figs. 25-26.— Parker, 1962, Micropaleontol., vol. 8, No. 2, p. 246, 



pi. 9, figs. 1-16. 



Globigerinita glutinata is distinguishable mainly by its smoothly 

 polished surface and low umbilical aperture. The bulla and dorsal 



