412 



BUT.T.F.TIN 100, UNITED STATES NATIONAL MUSEUM. 



peratures from 47.4° F. to 59° F. (8.5° C. to 15° C). The localities 

 are: China Sea, off southern Luzon; off western Bohol; and east of 

 Masbato. 



This is another species known only from the Philippines and the 

 Indo-Pacific. 



Spiroloculina arenaria — Material examined. 



Genus PLANISPIRINA Seguenza, 1880. 



PLANISPIRINA CONTKARIA (d'Orbigny). 



Plate 85, figs, la, b. 



Biloculina contraria d'Orbigny, Foram. Foss. Vienne, 1846, p. 266, pi. 16, 



figs. 4-6. 

 Planispirina contraria H. B. Brady, Rep. Voy. Challenger, Zoologj', vol. 9, 1884, 



p. 195, pi. 11, figs. 10, 11, woodcut, figs. 5, a. — Millett, Journ. Roy. Micr. Soc, 



1898, p. 611, pi. 13, fig. 12. 



This species was not found in the material from the North Pacific 

 which I examined, yet it has been found in the Philippine material 

 at 20 stations and in considerable numbers at some of them. The 

 specimens are large and well developed. 



The localities represented are Pacific Ocean, east and north coasts 

 of Mindanao; off northwestern Panay; east and west coasts of Lu- 

 zon; between Negros and Siquijor; between Jolo and Tawi Tawi. 

 To the southward it has occurred in Darvel Bay and Sibuko Bay, 

 Borneo; south of Patiente Strait and the Gulf of Boni. 



Depths of the stations range from 243 to 890 fathoms (445 to 

 1,628 meters), the average 445 fathoms (814 meters). The bottom 

 temperatures of 11 stations range from 38.3° F, to 53.5° F. (3.5° C. 

 to 11.8° C.) with the average 45.7° F. (7.6° C). 



The distribution of this species is peculiar. Millett had but a 

 single specimen in the Malay Archipelago, and it does not seem to 

 extend into the southern or eastern Pacific to any extent from the 

 records. Brady records it from Challenger material, north of New 

 Guinea, 1,075 fathoms (1,966 meters), and off Amboina, 1,425 fath- 

 oms (2,607 meters). The record from off Chile is in doubt, and the 

 others are from the North Atlantic. 



