64 (57) Aperture is partly blocked by a valvelike plate; test is 

 thick, nearly circular in outline; periphery rounded. 

 Length 0.35-0.65 mm. a, b. Opposite sides; c, top 

 view Miliolinella subrotunda 



X50 



64 (57) Aperture has a tooth 65 



'*- 



65 (64) Test is small, elongate and slender, rounded at base and top and on the 



periphery. Length 0.20-0.35 mm. a, b. Opposite sides; c, top view Triloculina obtonga 



65 (64) Test is compact 66 



66 (65) Test is triangular in section, rounded on the periphery, truncate at the apertural 



end. Length 0.32-0.40 mm. a. Front view; b, top view Triloculina trigonula 



66 (65) Test is compressed 67 



23 



