FOKAMINIFERA OF THE PHILIPPINE AND ADJACENT SEAS. 449 



curred in the region to the southward. At the 12 stations recorded 

 the depths range from 218 to 554 fathoms (399 to 1,012 meters), with 

 the average 372 fathoms (681 meters). Bottom temperatures of 

 the nine stations given range from 41.2° F. to 56.4° F. (15.1° C. to 

 13.5° C), the average being 50.4° F. (10.2° C). 



The locahties include the following : Off Jolo; Sogod Bay, southern 

 Leyte; east of Masbate; Pacific Ocean, east coast of Mindanao; 

 China Sea, off southern Luzon; east coast of Luzon; Palawan Pas- 

 sage; northern Mindanao and vicinity; north of Tawi Tawi; and Sulu 

 Sea, off western Mindanao. 



Sigmoilina sigmoidea — Material examined. 



Cat. 

 No. 



14687 

 14688 

 14689 

 14690 

 14691 

 14692 

 14693 

 11694 

 14695 

 14696 

 14697 

 14698 



Coll. of— 



U.S.N.M. 

 U.S.N. M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 

 U.S.N.M. 



No. of 

 speci- 

 mens. 



Station. 



D5172... 



D5201... 



1)5214... 

 1 I D5236... 

 1 D52S4... 

 3 D5348... 



1 D5469... 



2 I D.5512... 

 1 j D5549... 



1 05570... 



2 I D5572... 

 1 H4898... 



Locality. 



6 03 15 N. 

 10 10 00 N. 



12 25 18 N. 

 8 50 45 N. 



13 42 05 N. 

 10 57 45 N. 

 13 36 48 N. 



8 16 02 N. 



6 01 15 N. 

 5 32 15 N. 

 5 31 26 N. 



7 43 45 N. 



120 35 30E. 



125 04 15 E. 

 123 37 15 E. 



126 26 52 E. 

 120 30 45 E. 

 118 38 15 E. 

 123 38 24 E. 

 123 58 26 E. 

 120 44 20 E. 

 120 12 57 E. 

 120 09 45 E. 

 122 03 45 E. 



Character of 

 bottom. 



fno. s.,sh... 

 gy.s.,m.... 



gn.m 



fne.gy.s — 

 gy. m.,glob. 



Co.,s 



gum 



gy.m.jfne.s 

 s..glob.,f... 

 fne.s.,gIob. 



s 



gy.m.jglob. 



Abundance. 



Rare. 

 Rare. 

 Rare. 

 Few. 

 Rare. 

 Few. 

 Rare. 

 Rare. 

 Rare. 

 Rare. 

 Few. 

 Rare. 



SIGMOILINA SCHLUMBERGERI Silvestri. 



Planispirina celata H. B. Brady (not Costa), Rep. Voy. Challenger, Zoology, 



vol. 9, 1884, p. 197, pi. 8, figs. 1-4.— Sidebottom, Joum. Roy. Micr. Soc, 1918, 



p. 10. 

 Sigmoilina celata Cushman (not Costa), Bull. 71, U. S. Nat. Mus., pt. 6, 1917, p. 



61, pi. 24, fig. 1. 

 Sigmoilina schlumbergeri Silvestri, Mem. dell. Pont. Ace. Nuovi-Lincei, vol. 



22, 1904, p. 267.— Chapman, Biol. Res. Endeavour, vol. 3, pt. 1, 1915, p. 317. 



This is one of the common species of the region, especially in 

 water of some depth. It is recorded at 38 Albatross stations in the 

 Archipelago and the region to the southward. The depths of the 

 stations range from 32 to 1,570 fathoms (59 to 2,871 meters), with 

 the average 425 fathoms (781 meters). Bottom temperatures 

 range from 39.2° F. to 64.5° F. (4° C. to 18° C), with the average 

 50.2° F. (10.1° C). 



The 31 stations in the Archipelago are well scattered and in addi- 

 tion it is found to the southward in Sibuko Bay, Borneo; Gulf of 

 Tomini, Celebes; Pitt Passage; Molucca Sea; Gulf of Boni; Flores 

 Sea; and Macassar Strait. 



It is a widely distributed species at moderate depths. 

 182152—20 ^29 



