FORAMINIFERA OF THE PHILIPPINE AND ADJACENT SEAS. 



63 



If record had been kept of other cases where a few megalospheric 

 specimens were found and no microspheric ones, the preponderance 

 of megalosplieric specimens would be much greater. 



Ammodiscus incertus — Material examined. 



Cat. 



No. 



13927 

 12632 

 12633 

 12634 

 12635 

 13922 



13923 



12636 



13919 

 13921 

 13934 



13924 



13920 



13930 

 12638 

 13925 



13933 

 12639 

 13926 

 13929 

 12629 

 12637 



13932 

 13918 

 13928 



13948 

 13931 



12630 



Col!, of- 



U.S.N.M. 



kT.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. 

 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 



6 

 10+ 



9 



6 

 10+ 



Station. 



D5121. 



Id5236. 



D5259. 

 D5268. 

 D5272. 

 D5282. 

 1)5331. 

 1)5348. 

 D5385. 

 D5424. 

 D5428. 

 D5429. 

 D5438. 

 D5439. 

 1J5445. 

 D5446. 

 D5447. 

 D5449. 

 D5460. 

 D5467. 

 1)5567. 

 D.5574 . 

 D5585. 

 D5.586. 

 D5590. 



Locality. 



13 27 20 N.; 121 17 45 E... 

 8 50 45 N.: 126 26 52 E.. 



11 57 30 N.; 



13 42 00 N.; 



14 00 00 N.; 

 13 53 00 N.; 



15 36 45 N.; 

 10 57 45 N.; 

 13 24 50 N.; 



9 37 05 N.; 



9 13 00 N.; 



9 41 30 N.; 

 15 54 42 N.; 

 15 58 15 N.; 



12 44 42 N.; 



12 43 51 N.; 



13 28 00 N.; 

 13 21 36 N.: 

 13 32 30 N.: 

 13 35 27 N.; 



5 48 00 N.; 

 5 30 45 N.; 

 4 07 00 N.; 

 4 06 50 N.; 

 4 10 50 N.; 



121 42 15 E.. 

 120 57 15 E.. 

 120 22 30 E.. 



120 26 45 E.. 

 119 47 45 E.. 

 118 38 15 E . 



123 03 70 E.. 



121 12 37 E.. 

 118 51 15 E.. 



118 50 22 E.. 



119 44 42 E.. 



119 40 20 E.. 



124 59 50 E.. 

 124 59 IS E.. 



123 46 18 E.. 



124 00 30 E.. 

 123 58 06 E.. 

 123 37 18 E.. 



120 33 45 E.. 

 120 07 57 E . 

 118 49 54 E. 

 118 47 20 E.. 

 118 39 35 E.. 



f JS, tem- 

 "™^- ture. 



D5630...: 56 30 S.; 128 05 00 E.. 



D5637. 

 D5639. 

 D5640. 

 D5650. 

 D5656. 

 D5658. 

 D5667. 

 D5668. 

 H4S97. 



3 53 20 S.; 



3 54 50 S.; 



4 27 00 S.; 

 4 53 45 S.; 

 3 17 40 S.; 

 3 32 40 S.; 

 2 56 00 S.; 

 2 28 15 S.; 

 7 46 00 N.: 



126 48 00 E . . 

 123 27 20 E . . 

 122 55 40 E . . 



121 29 00 E.. 

 120 36 45 E . . 

 120 31 30 E . . 

 118 47 .30 E . . 

 118 49 00 E.. 



122 00 00 E.. 



108 



494 



312 

 170 

 118 

 248 

 178 

 375 

 327 

 340 

 1,105 

 766 

 297 

 940 

 383 

 300 

 310 

 300 

 565 

 480 

 268 



476 

 347 

 310 



569 



700 



1,500 



24 



540 



484 



510 



367 



901 



1,570 



41.2 



49.3 



'57.'4' 

 47.4 

 54.7 

 56.4 

 02.4 

 50.4 

 49.7 



46.2 

 36.7 

 44.3 



52.0 



41.1 

 44.0 

 44.3 



40.1 

 41.2 

 41.2 



41.7 

 38.2 



Character of 

 bottom. 



dk. gn. m . 



fne. gy. s.. 



gy. m., glob. 



s.p 



m. sh., CO. s. 



dk. gy.s 



s., sh., m... 



CO. s 



gy- m 



CO. s 



gy-m 



gn. m 



gn.m 



gn.m 



gn. m., s... 



gn.m 



gn.m 



gy-m 



gy.m.(m.D.) 



gy-m 



gn-m 



gn.m., s 



CO. s., m 



gy. m 



gy-m 



s., brk. sh... 



gn. m 



gy-m 



gy-m 



gy. s., m.... 



gy-m 



gy. m., glob . 



Abundance. 



Few. 



Common. 



Common. 

 Few. 



Rare. 

 Rare. 

 Few. 



Few. 

 Few. 

 Rare. 



Few. 

 Rare. 

 Few. 

 Rare. 



Rare. 

 Few. 

 Rare. 

 Rare. 

 Common. 



Few. 

 Rare. 

 Rare. 



Rare. 

 Rare. 

 Few. 



Few. 



AMMODISCUS INCERTUS d'Orbigny, var. DISCOIDEUS Cushman. 



Plate 5, fig. 3. 



Ammodiscus incertits, x&.r. discoideiis Cushman, Proc. 

 1917, p. 652. 



Nat. Mus., vol. 51, 



Description. — Variety differing from the typical in having the 

 sides rapidly increasing in diameter, the width of the coils in side 

 view very much less tlian in the typical, and the border in apertural 

 view very broadly rounded, the periphery oftentimes nearly straight 

 in the central portion. 



Diameter of microspheric specimens up to 2.5 mm. 



Distribution. — ^Type-specimen (U.S.N.M. No. 9103) from Albatross 

 station D5658 in 510 fathoms (933 meters), Gulf of Boni, bottom 

 temperature 41.2° F. (5.1° C). It also occurred at D5272, China 

 Sea, vicinity southern Luzon, 118 fathoms (203 meters), bottom tem- 

 perature, 57.4° F. (14.1° C); D.5582, in 890 fathoms (1,628 meters), 



