FIGURES 57, 59, and 60 



Fig. 57. Ceratocorys bipes (Cleve) Kofoid. A, ventral view of specimen from sample 

 273; B, apical view of same; C, right lateral view of specimen with abortive spines from sam- 

 ple 257; D, right lateral view of specimen shown in A; E, antapical view of same; F, right 

 lateral view of specimen from sample 330. Magnification: x 520. 



Fig. 59. Ceratocorys gourretii Paulsen. A, ventral view of specimen from sample 

 157; B, apical view of same; C, antapical view of same; D, right lateral view of same show- 

 ing autotomy of dorsal spine; E, left daughter cell from sample 265; F, left lateral view of 

 specimen from sample 402 showing double ventral spine; G, left daughter cell from sample 

 287; H, fourth postcingular plate from old moiety of specimen shown in E, showing large 

 intercalary zone with scattered pits. Magnification: A-D, x 470; E, G, H, x 340; F, x 290. 



Fig. 60. Goniodoma polyedricum Pouchet. A, apical view of specimen from station 

 45; arrows indicate position of girdle sutures; heavy lines indicate position of epithecal 

 sutures; B, antapical view of same; optical section of girdle is shown at fourth postcingular 

 plate only; C, separated precingular plate of heavily sculptured specimen; rabbet membranes 

 indicated; D, separated first precingular showing ventral epithecal pore; E, section of girdle 

 to show excavation; F, undissected sulcal complex; G, separated sulcal elements; H, ventral 

 view of specimen shown in A; I, right view of same. Magnification: x 340. Symbols: as, 

 anterior sulcal plate; Is, left sulcal plate; m, rabbet membrane; ps, posterior sulcal plate; 

 ra, right accessory sulcal plate; rs, right sulcal plate. 



120 



