80 



BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



depressed, apical end rounded, occasionally with minute spines; wall 

 calcareous, smooth; aperture broad and rounded, with a broad plate- 

 like tooth, partially filling the opening; color white. 



Length 0.50-1.00 mm. 



Distribution. — A few specimens from the western North Pacific 

 seem referable to this species, at least to the form figured by Brady, 

 which is stouter than the type. These were from Nero station 1299, 

 in 1,817 fathoms, south of Japan, and Albatross station H4891, in 

 756 fathoms, in Yezo Strait. 



The form of the apertural tooth in the specimen figured is a pecu- 

 liar one. It is broad, but instead of being like the one figured by 



Fig. 131.— Bulimina elongata. a, ventral view; b, dorsal view; c, end view. 

 X 00. d, view of apertural region. X 120. 



Brady is slightly bifurcate, with a median ridge from which the two 

 sides gradually slope away, as shown in the figure. This is a rather 

 peculiar type of apertural tooth for this family. 



BULIMINA PUPOIDES d'Orbigny. 



Bulimina pupoides d'Orbigny, For. Foss. Vienne, 1846, p. 185, pi. 11, figs. 13, 

 14.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 400, pi. 

 50, figs. 15a, b. 



Description. — Test ovate, broadest near the apertural end; apical 

 end bluntly pointed, tapering; end view nearly circular; visible cham- 

 bers numerous, much inflated; sutures rather deeply depressed; 

 wall smooth; aperture long and narrow, with a narrow plate-like 

 tooth; color white. 



Length about 1 mm. 



