100 BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



SPHAERAMMINA OVALIS Cushman. 



Plate 11, figs. 6-8; plate 14, figs. 5a, 6. 



Sphaerammina ovalis Cushman, Proc. U. S. Nat. Mue., vol. 38, 1910, p. 440, figs. 

 8-10. 



Description. — Test oval or spherical, composed of a series of cham- 

 bers, with a straight axis, each chamber as added extending back and 

 enveloping the preceding; chambers oval or nearly spherical; wall 

 of fine sand firmly cemented; aperture elliptical or romided; color, 

 grayish- or yellowish-brown. 



Diameter 1 to 2 mm. 



Specimens were common at the type station, D5236, Pacific Ocean, 

 off eastern Mindanao, 494 fathoms (903 meters), bottom temperature 

 41.2° F. (5.1° C); D5621, between Gillolo and Makyan Island, 298 

 fathoms (545 meters) ; and also specimens which were typical in every 

 way from D5637, near Bouro Island, 700 fathoms (1,280 meters), 

 bottom temperatures not recorded in the last two cases. 



Sphaerammina ovalis — Material examined. 



Genus AMMOSPHAERULINA Cushman, 1912. 



AMMOSPHAERULINA ADIIAERENS Cushman. 



Plate 18, figs. 11, 12. 



Ammosphaerulina adhaerens Cushman, Proc. U. S. Nat. Mus., vol. 42, 1912, p. 229, 

 pi. 28, figs. 11, 12. 



Description. — Test spherical, adherent, wall arenaceous; composed 

 of two or more chambers, each included by the one next-formed, 

 eccentric; color light yellowish-brown. 



Diameter about 0.75 mm. 



Specimens of this species were found at Albatross station D5637 

 in the vicinity of Bouro Island, Dutch East Indies, 700 fathoms (1,280 

 meters), bottom temperature not recorded. 



This is a peculiar form, somewhat like PsainmospJiaera, but having 

 chambers entirely included by the one last-formed. On account of its 

 small size and attached character it may easily be overlooked. The 

 figured specimen was attached to a specimen of Saccorhiza ramosa. 



