X150 



87 {86) Test is twisted around its elongate axis; aperture is comma-shaped; sutures are distinct and 



depressed. Length 0.20-0.32 mm. a, Side view; b, top view Fursenkoinafusifomtis 



87 {86) Plane of the test is flat 88 



88 {87) Suture lines are simple 89 



88 {87) Suture lines are slightly crenulated, i.e., the walls of the later chambers overlap the earlier chambers 91 



X75 



89 {88) Periphery is acute; test is relatively large, broadly tapering and in some specimens 

 keeled, ornamented with 2-4 conspicuous basal costae. Length about 0.70 mm. a. 

 Side view; b, top view Brizalina subaenariensis 



89 {88) Periphery is rounded 90 



(^ 



90 {89) Ornamented with barely visible costae, test is relatively small, narrowly tapering. 



Length about 0.35 mm. a. Side view; b, top view Brizalina slriatula 



30 



X120 



