FORAMINIFERA OF THE PHILIPPINE AND ADJACENT SEAS. 285 



Scattered specimens seem to be the rule as far as material from these 

 stations show. 



Allomorphina trigona — Material examined. 



Family GLOBIGERINIDAE. 



Genus GLOBIGERINA d'Orbigny, 1826. 



GLOBIGERINA BULLOIDES d'Orbigny. 



Glohigerina bulloides d'Orbigny, Ann, Sci. Nat., vol. 7, 1826, p. 277, No. 1; 

 Modeles, 1826, No. 17 and No. 76.— H. B. Brady, Rep. Voy. Challenger, Zoology, 

 vol. 9, 1884, p. 593, pi. 77; pi. 79, figs. 3-7.— Cushman, Bull. 71, U. S. Nat. 

 Mus., pt. 4, 1914, p. 5, pi. 2, figs. 7-9; pi. 9. 



This species was found at 34 stations in the area, some of them in 

 the protected waters of the Archipelago. It was frequent in the 

 China Sea and occasional in the Sulu Sea; Gulf of Tomini, Celebes; 

 between Gillolo and Makyan Islands, and between Gillolo and 

 Kayao Islands; and rare at a few points in protected waters of the 

 Archipelago, being noted as frequent at one station off Masbate. 

 These stations range in depth from 10 to 765 fathoms (18 to 1,399 

 meters), the average depth being 247 fathoms (452 meters), and the 

 bottom temperature ranges from 40.6° F. to 63.6° F (4.7° C. to 

 17.5° C), with the average 52.7° F. (11.4° C). 



The distribution of this and various other species of the family 

 seems to be due very largely to ocean currents. The current from 

 the east flows against the eastern side of the islands, then turns and 

 is swept back again. The currents undoubtedly carry some species 

 into the waters of the Archipelago, but in comparatively few num- 

 bers, and the only stations at which they are found in any quantity 

 are on the eastern coasts of Luzon and Mindanao. The southern 

 current sweeping into the China Sea also carries certain species into 

 that region also. 



