126 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



This is the most common species of the genus in the region. The 

 test is usually of coarse material, in most cases light colored, and at 

 a few stations is covered by a nearly black coating. There are nu- 

 merous records of its occurrence in depths varying from 13 to 508 

 fathoms (25 to 930 meters) with a number of stations less than 300 

 fathoms (549 meters). Where given, the bottom temperature ranges 

 from 44.3° to 76.3° F. (6.8° to 24.6° C). 



All but one of the stations, that from Sibuko Bay, Borneo, are in 

 the Archipelago, or in the China Sea; off southern Luzon, off western 

 Bohol; between Marinduque and Luzon; off northwestern Panay; 

 off Palawan; between Cebu and Bohol; Jolo Sea; between Negros 

 and Siquijor and north of Tawi Tawi. 



Bigenerina nodosaria- — Material examined. 



Cat. 

 No. 



Coll. of— 



No. of 



speei- Station. 



mens. 



Locality. 



Depth 



in 

 fath- 

 oms. 



Bo^ 

 torn 

 tem- 

 pera- 

 ture. 



Character of 

 bottom. 



Abundance. 



14241 

 14207 



12980 



12981 

 14239 

 14206 

 14240 



12979 

 14238 



14237 

 12978 

 12976\ 

 12977/ 



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. 



D5110. 

 D5198. 

 D5210. 

 D5220. 

 D5259. 

 D5281. 

 D5300. 

 D5301. 

 D5311. 

 7 I D531o. 

 W+\ D531S. 

 5 I D5342. 

 D5420. 

 D5423. 

 D5430. 

 D5449. 

 D5529. 

 D5538. 

 D5576. 



D5590. 



13 59 20 N. 

 9 40 .50 N. 

 11 49 55 N. 

 13 38 00 N. 

 11 57 30 N. 

 13 52 45 N. 

 20 31 00 N. 



20 37 00 N. 



21 33 00 N. 

 21 40 00 N. 

 21 32 00 N. 

 10 56 55 N. 



9 49 35 N. 

 9 38 30 N. 

 9 49 40 N. 

 13 21 36 N. 

 9 23 45 N. 

 9 08 15 N. 

 5 25 56 N. 



120 75 45 E. 



123 39 45 E. 



124 28 05 E. 



121 58 00 E. 

 121 42 15 E. 



120 25 00 E. 

 115 49 00 E. 



115 43 00 E. 



116 15 00 E. 



116 58 00 E. 



117 46 00 E. 

 119 17 24 E. 



123 45 00 E. 



121 11 00 E. 



119 03 20 E. 



124 00 30 E. 

 123 39 30 E. 

 123 23 20 E. 



120 03 39 E. 



4 10 50 N.; 118 39 35 E. 

 Off Singapore 



135 



220 



50 



50 



312 



201 



265 



208 



88 



148 



340 



14-25 



127 



508 



464 



300 



441 



256 



277 



310 



13 



" F. 

 59.0 

 53.9 

 76.3 



"49'3' 

 50.4 



50.5 



59.0 

 49.8 

 50.0 



dk. gy.m.... 



.en. m 



fne. gy.s 



sft. gn. m ... 

 gy m., glob. 



dk. gy. s 



gy.m.,s 



gy.m.,s 



cr. s., sh 



s.jSh 



s.,br. Co 



gy-m 



gv. ni.,co. s. 

 glob, oz 



53.0 

 53.3 

 53.3 



gy.m., glob. 

 gn.m.jS 



gn. m., s.. 



Few. 



Few. 



Common. 



Frequent. 



Few. 



Frequent. 



Rare. 



Frequent. 



Common. 



Frequent. 



Frequent. 



Frequent. 



Few. 



Frequent. 



Rare. 



Rare. 



Few. 



Few. 



Rare. 



Common. 



Common. 



BIGENERINA ARENACEA Bagg. 



Bigenerina arenacea Bagg, Proc. U. S. Nat. Mus., vol. 34, 1908, p. 132, pi. 5, figs. 

 4-6.— CusHMAN, Bull. 71, U. S. Nat. Mus., pt. 2, 1911, p. 29, figs. 50a, b (in 

 text). 



A single specimen very much like that figured^^ was found in the 

 dredgings made at D5236, Pacific Ocean, east coast of Mindanao, 494 

 fathoms (903 meters), bottom temperature 41.2° F. (5.1° C). 



Bagg's specimens were from off the reefs of the Hawaiian Islands. 



Bigenerina arenacea — Material examined. 



"Ball. 71, pt. 2, fig. SO. 



