Plate 15. 



Fig. 1. Trochammina infiala, var. macrescens. X 90 (After Brady.) 



2. Trochammina nitida. X 50. (After Brady) a, dorsal view, b, ventral •view,«i, 



apertural end. 



3. Trochamviina ochracea. X 125. (After Williamson.) 



4. Trochammina plicata. (After Balkwill and Wright.) 



5. TVochammina bradyi. X 100. (After Wright.) 

 104 



