FORAMINIFERA OF THE PHILIPPINE AND ADJACENT SEAS. 431 



fathoms (100 meters). Bottom temperatures are given at but three 

 stations, ranging from 56.4° F.(13.5° C.) at the deepest station to 

 79.5° F. (26.3° C.) at 38 fathoms (70 meters). The average tem- 

 perature for all stations undoubtedly would be around 75° F. 

 (23.8° C). These stations include the follov.dng localities: Jolo 

 Sea; Palawan Passage; China Sea off southern Luzon; between 

 Marinduque and Luzon; off northern Cebu; northeastern Panay; 

 vicinity of Romblon; Sulu Sea; Tawi Tawi Group, and off western 

 Mindanao. It did not occur at all in the regions to the south, prob- 

 ably because of the depth of water. 



Quinqtieloculina rugosa — nnaterial examined. 



QUINQUELOCULINA POLYGONA d'Orbigny. 



Plate 90, figs. 3a-c. 



Quinqueloculina pohjgona d'Orbigny. in De La Sagra, Hist. Fie. Pol. Nat. 

 Cuba, 1839, "Foramiiiif^res," p. 198, pi. 12, figs. 21-23. 



There are a few specimens which seem to be very close to this West 

 Indian species described by d'Orbigny. This is placed by Heron- 

 Allen and Earland as a synonym of Q.ferussaccii, but in the Phil- 

 ippines the two seem to be distinct. In the West Indies this is a 

 well-characterized species. 



Specimens are rare at a few stations. They are decidedly concave 

 on the periphery between the two keels, the lateral faces at right 

 angles to the periphery, or even concave, while Q. fentssaccii has 

 extended single keels unless in the last-formed chamber. 



The localities include the following: Sulu Archipelago, off Tawi 

 Tawi; off eastern Panay; between Marinduque and Luzon; and 

 the Palawan Passage. 



They range in depth from 10 to 375 fathoms (18 to 686 meters) or 

 less. 



