9B 



BULLETIN 104, UNITED STATES NATIONAL MUSEUM 



sutures nearly radial; dorsal surface nearly smooth, punctate or 

 slightly granular, ventral surface very often decidedly granular; aper- 

 ture a long narrow opening extending from the umbilicus nearly to 

 the peripheral margin. 



Diameter, 0.60-1.00 mm. 



This is a very widely distributed species in Globigerina-ooze in all 

 the oceans. It occurs in fossilized Globigerina-oozes of the Late 

 Tertiary, but is not identical with d'Orbigny's species from the Chalk 

 of the Paris Basin. 



Globorotalia truncal ulinoides — Material examined 



