Plate 97. 



Fig. 1. Biloculina sarsii. X 24. D5315. a, front view; b, side view; c, apertural 

 view. 



2. Biloculina lucernula. X 18. D5236. Slightly triloculine form, a, side 



view; b, opposite side; c, apertural \neyr. 



3. Operculina elegans. Side \dew, X 20. From station D5579. 



4. Vertebralina striata, var. reticulosa. Side view, X 60. From station D5160. 

 586 



