44 (43) Of norma] to large size .- ■.....•.,..... V: .^ 



44 (43) Minute, scaielike ....:.. 46 



X65 



45 (44) Early chambers are usually accentuated by a dark filling beneath the wall surface; sutures are distinct, incised 

 on the umbilical side; umbilicus is deep and open. Diameter 0.50-0.80 mm. a. Spiral view; b, umbilical view; 

 c, edge view Trochammina injlata 



45 (44) Test is flexible, collapses when dry. Diameter 

 0.25-0.35 mm. a, Spiral view; b, umbilical view; 

 c, edge view Trochammina macrescens 



X200 



46 (44) Whorls are many and narrow; umbilical surface is finer grained than spiral surface. Diameter 0.15-0.22 



mm. a. Spiral view; b, umbilical view; c, edge view Trochammina ochracea 



46 (44) Whorls are few and wide. Diameter 

 0.20-0.40 mm. a. Spiral view; b, 

 umbilical view; c, edge view . . Trochammina squamata 



X120 



17 



