95 (94) Terminal aperture lacks a protruding tooth and is surrounded by a phialine lip; test 

 becomes biserial toward the apertural end; wall is finely hispid. Length about 0.25 mm. 

 a, Side view; b, top view Hopkinsina atlantica 



XI20 



X50 



96 (77) Test is not coiled (uniserial), long axis of the test is slightly arcuate; chambers are Httle 



inflated; aperture is radiate, slightly protruding. Length about 1 .00 mm Denialina communis 



96 (77) Testiscoiled 97 



97 (96) Aperture is radiate and situated at the periphery; chambers are few, 



not inflated; sutures are not depressed. Length 0.45-0.75 mm. a, ^'■~-~_\^.^'^^^ \ / b 



Side view; b, edge view Lenticulina occidentalis X60 



97 (96) Aperture is not radiate 98 



98 (97) Coiling is planispiral and hence the same on both sides 99 



98 (97) Coiling is trochoid and hence different on the two sides 115 



99 (98) CoUed chambers are in a single row 100 



99 (98) Coiled chambers are in a double row 113 



100 (99) Sutures are simple 101 



100 (99) Sutures are crossed by septal bridges 105 



101 (]00) Coiling is tight 102 



101 (100) Coiling is expanding 103 



33 



