FIGURES 53 - 56, and 58 



Fig. 53. Ceratocorys armata (Schutt) Kofoid. A, ventral view of specimen from sam- 

 ple 271; B, apical view of same; C, apical view of left daughter cell from sample 287; D, 

 right lateral view of specimen in A; E, antapex of same. Magnification: x 460. 



Fig. 54. Ceratocorys armata (Schutt) Kofoid. A, heavy-walled specimen from sample 

 13, ventral view; B, antapex of same; C, anterior view of a girdle plate showing the heavy, 

 well -developed transverse lists or ridges of the girdle; D, antapex of specimen from sample 

 99 showing approximation of the left and dorsal antapical spines; E, specimen from sample 

 290 with unusually long spines; left antapical spine absent. Magnification: x 340. 



Fig. 55. Ceratocorys reticulata n.sp. A, ventral view; B, apical view; C, right 

 lateral view; D, antapical view. Magnification: x 380. Type specimen, from sample 177. 



Fig. 56. Ceratocorys aultii n.sp. A, ventral view; B, antapical view; C, apical view; 

 D, right lateral view. Sutures indicated by dotted lines. Magnification: x 520. Type speci- 

 men, from sample 337. 



Fig. 58. Ceratocorys skoEsbergii n.sp. A, ventral view; B, apical view; C, antapical 

 view; D, right lateral view. Magnification: x 570. Type specimen, from sample 291. 



118 



