(6) Test is branching and slender, growing upward from an attached base. Normally 



observed as fragments. Diameter of tube 0.08-0. 10 mm Dendrophrya arborescens 



((5) Test is flexible; apertures are at the ends of short 

 stalks, usually one at each end of the slightly 

 elongate hemisphere; wall is fine grained, 

 roughened, orange in color. Diameter exclusive of 

 apertural stalks 0.50-0.70 mm. a, Top view; b, 

 side view showing apertural stalks; c, basal view of 

 detached specimen showing filamentous floor of 

 test Thurammina? limnetis 



(6) Test is rigid 9 



X15 



9 {S) Apertures are indistinct, consisting of low irregular 

 openings between the test and its support; wall is 

 fine grained. Diameter exclusive of apertural exten- 

 sions 0.50-2.50 mm. a. Top view of specimen 

 attached to a fragment of Rhabdammina; b, side 

 view Tholosina bulla 



(8) Apertures are distinct, consisting of several radiating tubes that are also 

 attached to the supporting object. Diameter exclusive of apertural tubes 

 0.20-0.70 mm. Top view Tholosina vesicularis 



X40 



