FORAMINIFERA OF THE KERIMBA AECHIPELAQO. 551 



BilocuUna ringens Williamson, 1858, RPGB. p. 79, pi. vi. figs. 169, 170, pi. vii. fig. 71. 

 Brady, ] 884, FC. p. 142, pi. ii. figs. 7, 8. 

 Egger, 1893, FG. p. 220, pi. i. figs. 7-9. 

 „ „ Chapman, 1900, FLF. p. 170. 



4 Stations. 



One small and elongate specimen was found at Stn. 1, evidently closely allied to the 

 var. striolata Brady (which occurs rather more abundantly in the dredgings), but quite 

 free from superficial markings. Also a few small and normal specimens elsewhere. 



9. Biloculina ringens, var. denticulata, Brady. (Pi. XL. figs. 11-13.) 



BilocuUna alata d'Oibigny, 1826, TMC. p. 298.no. 6. 



„ ringens, var. denticulata Brady, 1884, FC. p. 143, pi. iii. figs. 4, 5. 



„ „ Millett, 1898, etc., FM. 1898, p. 262. 



„ „ „ Fornasini, 1899, La " Biloculina alata " di A. D. d'Orbigny, 



Kiv. Ital. di Palceont. Anno v. p. 23, figs. 

 8 Stations. 



Generally distributed and common at some Stns., notably Stns. 6, 11, and 12. This 

 well-marked type, which is a typical coral-sand species, is certainly the dominant 

 Biloculina of the Kerimba dredgings, growing to a considerable size and often strongly 

 marked in its characteristic aboral denticulations. At some of the Stns., notably 6 and 

 12, a few of the specimens are faintly striate, thus combining the particular features of 

 this variety and of var. striolata Brady. At Stn. ■? B some of the individuals have a 

 wrinkled surface. At Stns. 9 and 12 there is a dehiscent tendency, the ultimate and 

 penultimate chambers separating and forming a distinct groove round the shell. 



10. Biloculina ringens, var. striolata Brady. 



Biloculina ringens, var. striolata Brady, 1884, FC. p. 143, pi. iii. figs. 7, 8. 



Millett, 1898, etc., FAl. 1898, p. 262, pi. v. fig. 8. 



2 Stations. 



Extremely rare ; of the few specimens found, the most noticeable were at Stn. 11, 

 where the ultimate and penultimate chambers are separated by a deep cleft down the 

 sides of the shell. 



11. Biloculina bulloides d'Orbigny. 



Bihculina bulloides d'Orbigny, 1826, TMC. p. 297. no. 1, pi. xvi. figs. 1-4, Modele no. 90. 

 Brady, 1884, FC. p. 142, pi. ii. figs. 5, 6. 

 „ „ Schlumberger, 1887, Note sur les Biloculina bulloides d'Orb. et Biloculina 



ringens haul. Bull. Soc. Geol. France, ser. 3, vol.xv. pp. 573-.584, pl.xv. 

 Egger, 1893, FG. p. 217, pi. i. figs. 16-18. 

 „ „ Millett, 1898, etc., FM. 1898, p. 263. 



„ Herou-Allen & Earland, 1913, CI. p. 21. 



2 Stations. 



Occurs very rarely, but small and typical examples were found. 

 VOL. XX. — PART XVII. No. 2. — JS^ovember, 1915. 4 k 



