40 (39) Chambers are not inflated; umbilicus is not well developed; wall 

 is finely arenaceous, smooth, glossy. Diameter 0.25-0.40 mm. 

 a. Side view; b, edge view Haplophragmoides hancocki 



XlOO 



40 (39) Chambers are few (7 or less), inflated; umbilicus is well developed; 

 wall is coarsely arenaceous and smoothly finished. Diameter 0.25- 

 0.30 mm. a. Side view; b, edge view Haplophragmoides bonplandi 



X120 



41 (38) Test is large, robust, coarse surfaced, usually orange. 

 Diameter 0.90-1.30 mm; thickness about 0.50 

 mm. a, Side view; b, edge view Cribrostomoides crassimargo 



41 (38) Test is delicate, smooth surfaced. Diameter 0.45-0.60 mm. a, Side 



view; b, edge view Cribrostomoides jeffreysii 



X75 



42 (37) Aperture is simple. . 

 42 (37) Aperture is complex 



.43 

 .50 



43 (42) Fine grained, smooth surfaced 

 43 (42) Medium to coarse grained ... . 



.44 

 .47 



16 



