422 University of Kansas Geological Survey. 



this means considerable variation in appearance may be pro- 

 duced, although the general form and structure is not altered. 

 The plan of growth is indicated in figures 1 and 3. Budding 

 from the primordial chamber takes place in such a manner as 

 to add alternately to- the two rows, a fact that is suggested by 

 the means of communication between the chambers of the two 

 series. Sections through a single row may occasionally be 

 found (f. 2), which simulate in appearance Nodosaria. The 

 absence of communication between the chambers, however, dis- 

 poses of this superficial resemblance. 



Textularia was found universally present in all the horizons 

 where Foraminifera were represented, except in the Inoceramus 

 beds. It was particularly numerous in specimens from the 

 Hesperornis beds. Both the typical form (f. 3) and the pigmy 

 form (f. 4) were found. 



Glob iff erinidce. 



Orbulina universa. (PI. lxxxv, f. 9.) 



Orbulina universa d' Orbigny, 1839, Foram. Cuba, p. 3. 

 Miliola spherula Ehrenberg, 1854, Mikrogeologie. 

 Globigerina universa Owen, 1867, Journ. Linn. Soc, vol. ix. 



Shell unilocular, spherical, hollow. Walls thin, perforated 

 by numerous, minute foramina, and provided usually with an 

 oral aperture, as in Globigerina bulloides, but this is sometimes 

 lacking. Variable in size and in thickness of shell. 



The synonymy of the name applied to this species throws 

 considerable light upon its relationships. The resemblance to 

 Globigerina bulloides is so close as to lead many investigators to 

 the conclusion that it is merely the unilocular form of this 

 species — a belief that the present writer's brief study supports. 

 Add to this the almost invariable presence of the two together, 

 and the case in favor of identity becomes a strong one. Dis- 

 tribution about the same as that of G. bulloides. 



