FORAMINIFERA OF THE PHILIPPINE AND ADJACENT SEAS. 281 



Siphogenerina (Sagrina) raphanus Egger, Abh. kon. bay. Akad. Wise. 

 Munchen, CI. II, vol. 18, 1893, p. 317, pi. 9, fig. 36.— Cushman, Bull. 71, 

 U. S. Nat. Mus., pt. 3, 1913, p. 108, pi. 46, figs. 1-5. 



This species is the most common of the genus in the region, occurring 

 at numerous stations well scattered over the region, and from Apra 

 Bay, Guam. In depth the stations range from 78 to 554 fathoms 

 (143 to 1,012 meters), and the bottom temperatures from 47.5° F. 

 to 59° F. (8.6° C. to 15° C). All but one station had a bottom tem- 

 perature above 51° F. (10.5° C). In its typical form this species has 

 a tapering shape, acute at the initial end, with a narrow neck and 

 well-developed phialine lip, with a few strong costae, independent of 



the sutiu-es. 



Siphogenerina raphanus — Material examined. 



Locality. 



12 43 00 N. 

 10 10 00 N, 



13 42 00 N, 

 13 56 55 N, 

 21 30 on N, 

 21 32 00 N, 



9 49 35 N, 

 12 43 05 N, 



8 48 44 N, 



9 08 15 N, 



5 54 48 N. 



5 51 42 N, 

 5 31 26 N. 

 2 54 30 S, 



122 06 15 E.. 

 125 04 15 E.. 

 120 57 15 E.. 

 120 13 45 E.. 



116 43 00 E.. 



117 46 00 E.. 



123 45 00 E.. 

 125 01 00 E.. 

 123 27 35 E- 

 123 23 20 E- 



120 44 24 E.. 



120 30 30 E.. 

 120 09 45 E.. 



118 47 00 E.. 



Depth 



in 

 fath- 

 oms. 



78 

 554 

 170 



80 

 150 

 340 

 127 

 241 



256 



193 



243 

 334 



272 



Bot- 

 tom 

 tem- 

 pfra- 

 ture. 



'F. 



63. 



58.6 

 53.6 



59.0 

 51.3 



.53.3 



53.3 



52.3 

 52.3 



47.5 



Character of 

 bottom. 



fne.s 



gj'.s.,m.. 



fne.s 



s.jbr. Co 



co.s.,sh. 



gn.m.jS.. 

 fne.s 



s.,ptr.,sh. 



s 



gn.m 



Abundance. 



Common. 



Rare. 



Rare. 



Few. 



Few. 



Few. 



Few. 



Rare. 



Rare. 



Rare. 



Few. 



Rare. 

 Few. 

 Few. 



SIPHOGENERINA RAPHANUS (Parker and Jones), var. COSTULATA Cushwan. 



Plate 56, fig. 6. 



Siphogenerina raphanus (Parker and Jones), var, costulala Cushman, Proc 

 U. S. Nat. Mus., vol. 51, 1917, p. G62. 

 This variety differs from the typical in its much more cylindrical 

 form, its few very definite costae, and the very short, wide neck 

 without a lip. This variety does not always occur with the typical, 

 but in aU the material seen there appear to be no intermediate forms. 

 Both microspheric and megalospheric forms were noted. The variety 

 occurred at the following stations: From the exterior of pearl oyster, 

 Jolo Jolo; D5134, Sulu Archipelago, near Basilan Island, 25 fathoms 

 (46 meters); D5201, Sogod Bay, southern Leyte, 554 fathoms (1,012 

 meters), bottom temperature 52.8° F. (11.5° C); D5575, north of 

 Tawi Tawi, 315 fathoms, bottom temperature 52.3° F.; D5142, 

 vicinity of Jolo, 21 fathoms (39 meters); D5143, vicinity of Jolo, 19 

 fathoms (35 meters); D5469, east coast of Luzon, San Bernardino 

 Strait to San Miguel Bay, 500 fathoms (914 meters); D5546, Jolo 

 Island and vicinity, 138 fathoms (252 meters), bottom temperature 



