PORAMINIFEEA OF THE KERIMBA AECHIPELAGO. 679 



7 Stations. 



Occurs rather infrequently, in any numbers only at Stns. 1 and 12. All the Kerimba 

 specimens differ considerably both from d'Orbigny's original type and from the species 

 G. sub-cretacea, instituted by Chapman (C. 1901, FFA. p. 410, pi. xxxvi. fig. 16) for the 

 reception of recent specimens on what appears to us to be insufficient grounds, having 

 regard to the very variable nature of the Globigerine shell. The principal point of 

 distinction in Chapman's species is the depression of the spire, which in d'Orbigny's 

 figure is a flattened cone, whereas in Chapman's Funafuti specimens the central 

 portion is inverted and below the level of the last whorl of chambers. He describes 

 his species as having "few chambers," but as figured by him they are more numerous 

 than in d'Orbigny's original figure. 



In the Kerimba specimens the spire isfiattened, but hardly depressed below the level 

 of the circumambient chambers ; the number of chambers is limited, the entire shell 

 consisting, as a rule, of two to two and a half whorls, the chambers rapidly increasing 

 in size, the later ones being almost globular in shape, and the external surface is 

 irregularly studded with a few beads which were probably, iu life, furnished with com- 

 paratively stout spines. All the chambers are visible on the superior side of the shell — 

 on the inferior side, as a rule, only the final whorl is visible, the depressed umbilical 

 portion being usually obscured by secondary shell-matter. The aperture is a restricted 

 arch on the face of the terminal chamber. 



The Kerimba specimens thus appear to occupy an intermediate position between 

 d'Orbigny's original fossil type and Chapman's recent species, but we see no necessity 

 for separating our specimens from d'Orbigny's species or any objection to including 

 Chapman's specimens under the same specific name, the differences appearing to be 

 too slight to justify separation. 



316. Globigerina iniata d'Orbigny. 



Globigerina inflata d'Orbigny, 1839, FIC. p. 134, pi. ii. figs. 7-9. 



„ Parker & Jones, 1865, NAAF. p. 367, pi. xvi. figs. 16, ir. 

 „ Brady, 1884, FC. p. 601, pi. Ixxix. figs. 8-10. 

 „ Egger, 1893, FG. p. 369, pi. xiii. figs. 45-47. 

 „ Goes, 1894, ASF. p. 85, pi. xiv. figs. 763-765. 

 „ „ Millett, 1898, etc., PM. 1903, p. 687 (References). 



4 Stations. 



Only a few individuals, but fairly typical. This species appears to reach its best 

 development in the temperate zone in the Atlantic, where it is one of the dominant 

 forms. 



317. Globigerina rubra d'Orbigny. 



Globigerina rubra d'Orbigny, 1839, FC. p. 82, pi. iv. figs. 12-14. 



„ Van den Broeck, 1876, FB. p. 77, pi. ni. figs. 7, 9, 10. 

 „ Brady, 1884, FC. p. 602, pi. Ixxix. figs. 11-16. 

 VOL. XX, — PART XVII. No. 18. — November, 1915. 5 c 



