FORAMINIFEEA OF THE PHILIPPINE AND ADJACENT SEAS. 



43 



Distribution. — Specimens have occurred at several Alhotross sta- 

 tions off the east coast of Luzon; Jolo Sea; Gulf of Tomini, Celebes; 

 off Bouro Island; and Gulf of Boni. These stations range in depth 

 from 310 to 1,181 fathoms (567 to 2,160 meters), the average being 

 744.3 fathoms (1,360 meters). The bottom temperatures where given 

 average 41.2° F. (5.1° C). 



This species has a very difl'erent texture from the preceding, the 

 wall being hard, the sponge spicules instead of being irregularly felted, 

 are arranged longitudinally and cemented with a hard, siliceous 

 cement with a smooth, polished surface. 



' Bathysiphon rufus — Material examined. 



Locality. 



4 53 45 S.; 



9 37 05 N.; 



42 00 S.; 

 13 28 00 N.; 

 13 35 39 N ; 



3 53 20 S.; 



1 19 00 S.; 

 13 32 30 N.; 



8 50 45 N.; 

 10 02 45 N.; 

 15 58 15 N.; 



121 29 00 E. 

 121 12 37 R. 

 121 44 00 E. 

 123 46 18 E. 

 123 40 28 E. 

 126 48 00 E . 



118 43 00 E . 

 123 58 06 E. 

 126 26 52 E. 

 121 48 15 E. 



119 40 20 E. 



Depth 



in 

 fath- 

 oms. 



540 

 340 

 752 

 310 

 569 

 700 

 1,181 

 665 

 494 

 958 

 940 



Bot- 

 tom 

 tem- 

 pera- 

 ture. 



Character of 

 bottom. 



" F. 

 40.1 

 50.4 



45.3 



41.2 

 50.1 

 36.7 



gn. m 



CO. s , 



gy. m 



gn. m 



gn. m 



gy- m 



gy. m , 



Abundance. 



Common. 



Few. 



Rare. 



Rare. 



Rare. 



Few. 



Few. 



Rare. 



fne, gy.s Few. 



gy. m.jglob..: Rare, 

 gn. m i Few. 



BATHYSIPHON RUFESCENS Cushman. 



Plate 2, figs. 3a, b. 

 Bathysiphon ru/escens Cushman, Proc. U. S. Nat. Mus., vol. 51, 1917, p. 651. 



Description. — Test elongate, very slightly if at all curved, very 

 slightly tapering, slender, wall marked by annular rings, surface 

 rough, very light yellowish- or reddish-brown, dull. 



Diameter up to 0.5 mm.; length up to 15 mm. 



Distribution. — Type specimen (U.S.N.M. No. 9098) from Albatross 

 station D5236, in 494 fathoms (903 meters). Pacific Ocean off eastern 

 coast of Mindanao; bottom temperature 41.2° F. (5.1° C). At this 

 station the species was abundant. It also occurred at D5468, in 569 

 fathoms (1,081 meters), east coast of Luzon, and D5469, in 560 fath- 

 oms (1,024 meters), east coast of Luzon, D5639 in 1,560 fathoms (2,852 

 meters) in Molucca Sea. It wjis not found in the warmer, protected 

 water of the Archipelago proper. 



This species differs from B. rufus, which it most resembles in the 



rough, granular surface and the very slightly tapering, practically 



straight test. 



Bathy siphons rufescens — Material examined. 



