304 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



their Clare Island work.^* A comparison of tlie figures of the Clial- 

 lenger Report with the original figures of the species to which Brady 

 referred his material will show that in most cases the choice of names 

 was hardly wise. So other writers, following the Challenger deter- 

 minations and adding their own variant views, have created a com- 

 plexity of nomenclature that it is very difficult to unravel. How- 

 ever, the figures of the Challenger Report are very accurate, and a 

 study of the originals with notes as to their occurrence would help 

 much. In the Philippine material the genus has been very poorly 

 represented, probably because the specimens are usually small and 

 were lost in the original washing. Therefore, it is impossible with 

 the meagre material to add greatly to the clearing up of the prob- 

 lems waiting to be solved. In certain of the species reference to the 

 Challenger figures is given rather than describing them as new. 



DISCOKBIS SUBOBTUSA. new species. 



Plate 70, figs. 2a-c. 



Description. — Test circular in outline, periphery rounded, cham- 

 bers about six or seven in the last-formed coil; sutures oblique, 

 distinct, flush with the surface, ventral side more rounded; sutures 

 nearly at right angles to the periphery, ending in slight, blunt pro- 

 jections in the middle, slightly umbilicate; aperture narrow, the 

 elongate base of the last-formed chamber extending about halfway 

 from the umbilicus to the periphery; wall smooth and slightly pol- 

 ished, punctate. 



Diameter about 1.5 mm. 



Distribution — Type specimen (Cat. No. 15356 U. S. N. M.) from 

 Albatross station D5236, off the east coast of Mindanao, in 494 fathoms 

 (903 meters). 



This is a large species, different from any others in the region. 

 It is not found elsewhere. 



Discorbis subobtitsa — Material examined. 



DISCORBIS VILARDEBOANA (?) d'Orblgny. 



The material from Albatross D5144, off Jolo, in 19 fathoms (35 

 meters), is almost exactly like the figure given by Brady in plate 86, 

 figure 12, of the Challenger Report. It is evidently not the same as 



" The Foraminifera of the Clare Island District, County Mayo, Ireland, Proc. Royal Irish Acad., 

 vol. 31, pt. 64, 1913, pp. 110-141. 



