rOKAMINIFEEA OF THE KEEIMBA AECHIPELAGO. 677 



Sagrina striata Brady, 1884, FC. p. 584, pi. Ixxv. figs. 25, 26. 



Siphogenerina striata Kgger, 1893, FG. p. 316. pi. ix. figs. 32, 34, 35, 64, 65. 



Sagrina striata Millett, 1898, etc., FM. 1903, p 272. 



Siphogenerina striata Cusliman, 1910, etc., FNP. 1913, p. 107, pi. xlvii. figs. 4, 5. 



3 Stations. 



At Stn. 10 the specimens are of a regular type, cylindrical in section, similar to 

 Brady's figures. At Stn, 11 the specimens are large, oval in section, and characterized 

 by a bifarine arrangement of the middle chambers, the septa, which are limbate, 

 running in a zigzag direction. The shells thus appear to present a transition-type 

 between S. striata and S. iifrons Brady (B. 1884, FC. p. 582, pi. Ixxv. figs. 18-20). 



310. Sagrina raplianus Parker & Jones. 



Uvigei-ina {Sagrina) raphanvs Parker & Jones, 1865, JNAAF. p. 364, pi. xviii. figs. 16-17. 



Siphogenerina costata Sclilumberger, 1883, FGG. p. 118, fig. B. 



Sagrina raphanus Brady, 1884, FC. p. 585, pi. Ixxv. figs. 21-24. 



Siphogenerina {Sagrina) raphanus Egger, 1893, FG. p. 317, pi. ix. fig. 36. 



Sagrina raphanus Millett, 1898, etc., FM. 1903, p. 272. 



Nodosaria cylindracea Dakin, 1906, FC. p. 235, pi. fig. 8. 



5 Stations. 



Occurs sparingly, but sometimes in considerable numbers. The best at Stns. 5 and 

 11, where it was large and well developed. Only small individuals at Stns. 1 and 3. 

 AD the specimens are of the entosolenian type, similar to Dakin's figure {ut supra). 

 His figure, however, represents a shell with exceptionally fine and numerous cost*. 



311. Sagrina tessellata Brady. (Pl. LI. fig. 9.) 



Sagrina tessellata Brady, 1884, FC. p. 585, pl. Ixxvi. figs. 17-19. 

 „ „ Millett, 1898, etc., FM. 1903, p. 273, pl. v. fig. 16. 



2 Stations. 



Two typical specimens (both broken) at Stn. 1, and a somewhat obscure individual 

 at Stn. 10. This extremely interesting form is of much more frequent occurrence in 

 shallow water of the eastern area of the Indian Ocean ; we have records of it from 

 many shallow gatherings in the Malay and Eastern seas. Millett's figures and 

 description of the chambers " subdivided into chamberlets by transverse septa " would, 

 if confirmed, raise some doubts as to the proper status of this form, which woiild then 

 require removal to a separate subgenus. The scarcity of material, and its small size 

 and obscurity of structui-e must, however, postpone any discussion upon this point ; 

 but it appears to us from an examination of many balsam-mounted specimens under 

 high magnifications that this " tesselated " appearance is not due to the presence of 

 chamberlets but to two series of ridges at right angles to each other, which project 

 from the inner surface of the shell-wall into the cavities of the chambers, but do not 

 subdivide the cavity into chamberlets. 



