FORAMINIFERA OF THE PHILIPPINE AND ADJACENT SEAS. 



83 



HAPLOPHRAGMOIDES SPHAERILOCULUM Cushman. 



Plate 15, fig. 3. 



Haplophragmoides spJiaeriloculum Cvshman, Proc. U. S. Nat. Mus., vol. 51, 1917, 

 p. 652. 



Description. — Test biconvex, composed of about three coils, cham- 

 bers comparatively few, five in each coil, subspherical, sutures 

 deeply depressed ; wall composed of fine sand grains with a reddish- 

 brown cement, the sutures and umbiUcal depression more or less 

 filled with a light-colored fine amorphous material; aperture a nar- 

 row slit at the base of the chamber. 



Diameter about 2 mm. 



Distrihution. — Type specimen (U.S.N.M. No. 9104) from Albatross 

 station D5637, in Pitt Passage, in 700 fathoms (1,280 meters). 



This species is marked by the very convex, inflated, almost spheri- 

 cal chambers, with a fine grained, yellowish-brown wall. 



Sidebottom has recorded this species from the east coast of Aus- 

 tralia, in 465 fathoms (846 meters).^ 



Genus CRIBROSTOMOIDES Cushman, 1910. 



CRIBROSTOMOIDES BRADYI Cushman. 



Plate 17, figs, la, b. 



Haplophragmium latidorsatum H. B. Brady (part) (not Bomemann), Rep. Voy. 



Challenger, Zoologj% vol. 9, 1884, p. 307, pi. 34, fig. 9. 

 Cribrostomoides bradyi Cushman, Bull. 71, U. S. Nat. Mus., pt. 1, 1910, p. 108, 



figs. 167, a, b (in text). 



This species occurs at numerous stations and in considerable num- 

 bers, especially in the region south of the Equator, where so many 

 arenaceous forms occur. Apparently both microspheric and megalo- 

 spheric forms of the species occur here; the smaller meglospheric 

 specimens do not show the cribriform aperture as well as the larger 

 microspheric specimens. Also in the development of a single speci- 

 men, the aperture in the earlier chambers is simple and gradually 

 assumes the cribriform structure of the adult. In these characters 

 it agrees with what has already been noted in Haplostiche duhia. 

 Almost all the stations at which the species occurred are in com- 



' Journ. Roy. Micr. Soc, 1918, p. 15, pi. 2, figs. 15, 16. 



