86 



BULLETIN 10(), UNITED STATES NATIONAL MUSEUM. 



station off the west coast of Luzon; Darvel Bay and Sibuko Bay, 

 Borneo; north of Celebes; Patiente Strait; Gulf of Boni, Flores 

 and Macassar Strait. These stations range in depth from 208 to 

 1,092 fathoms (381 to 1,998 meters), the average depth being 601 

 fathoms (1,099 meters). Bottom temperatures range from 36.3° 

 to 50.5° F. (2.3° C. to 10.2° C.) with the average 40.3° F. (4.6° C). 

 This species seems to be in colder and deeper water than the pre- 

 ceding, from which it may be distinguished by its compressed form, 

 larger number of chambers, depressed umbilical area, and subangu- 

 lar, somewhat depressed sutures. 



Cyclammina compressa — Material examined. 



Locality. 



20 37 00 N. 

 15 58 15 N. 

 13 32 30 N. 

 13 35 39 N. 

 13 35 27 N. 

 13 36 48 N. 

 13 37 30 N. 



i 19 54 N. 



4 11 48 N. 



11 00 S. 



42 00 S. 



15 00 N. 



56 30 S. 



3 53 20 S. 



4 53 45 S. 

 3 17 40 S. 

 3 32 40 S. 

 2 28 15 S 



115 43 00 E. 



119 40 20 E. 

 123 58 06 E . 

 123 40 2SE. 

 123 37 18 E. 

 123 38 24 E . 

 123 41 09 E. 

 118 58 38 E. 

 118 38 20E. 

 121 16 00 E. 

 121 44 00 E. 



127 24 35 E . 



128 05 00 E . 

 126 48 OOE. 

 121 29 OOE. 



120 36 45 E . 

 120 31 30E. 

 118 49 OOE. 



Depth 



in 

 fath- 

 oms. 



208 

 940 

 565 

 569 

 480 

 500 

 560 

 890 

 260 

 1,092 

 752 

 298 

 569 

 700 

 540 

 484 

 510 

 901 



Bot- 

 tom 

 tem- 

 pera- 

 ture. 



o p 



50.5 

 36.7 



38.3 

 36.' 3 



40.1 

 41.2 

 41.2 



38.2 



Character of 

 bottom. 



gy. m., s 



gn. m 



gy-m 



gn. m.(m. b.) 

 gn.m.(m.b.) 

 gn.m.(m.b.) 



m. 



gy.m.,fne. o. 



gn. m 



gy-m 



gy. and bk.s. 



CO. s., m 



gy-m 



gn. m 



gy-m 



gy- m 



gy-m 



Abundance. 



Common. 



Few. 



Few. 



Common. 



Common. 



Common. 



Frequent. 



Few. 



Frequent. 



Few. 



Few. 



Few. 



Fragment. 



Rare. 



Few. 



Few. 



Few. 



Rare. 



CYCLAMMINA PAUCILOCULATA Cushman. 



Plate 16, figs. 3 a, b. 

 Cyclammina pauciloculata Cushman, Proc. U. S. Nat. Mus., vol. 51, 1917, p. 653. 



Description. — ^Test compressed, nautiloid, biconvex, peripheral 

 margin subacute, umbilical region depressed, chambers 10 to 11 in 

 number, sutures nearly straight to somewhat curved; surface smooth 

 when perfect; supplementary apertural pores few in number. 



Diameter up to 2 mm. 



Distribution. — Type specimen (U.S.N.M. No. 9106) from Albatross 

 station D5538, in 256 fathoms (468 meters), between Negros and 

 Siquijor, bottom temperature 53.3° F. (11.8° C). This species was 

 abundant at this station, and was also found in the China Sea off 

 southern Luzon; east coast of Luzon; off northern Mindanao; Gulf of 

 Tomini, Celebes; and Gulf of Boni. These stations range in depth 

 from 102 to 1,092 fathoms (187 to 1,998 meters), the average depth 

 530 fathoms (970 meters); bottom temperatures range from 36.3° to 

 59.6° F. (2.3° C. to 15.3° C), the average being 44.0°F. (6.4° C). 



