PLATE 42. 



PORODISCIDA. 



Diam. Page 



Fig. 1. Staurodictya elegans, n. sp., . . . . x 500 507 



Fig. 2. Staurodictya ciliata, n. sp., . . . . . x 400 506 



Fig. 3. Staurodictya medusa, n. sp., . . . . x 400 506 



Fig. 4. Staurodictya cruciata, n. sp., . . . . . x 300 507 



Fig. 5. Staurodictya cruciata, n. sp., . . . . x 300 507 

 Vertical section through the disk. 



Fig. 6. Staurodictya grandis, n. sp., . . . . x 300 508 



Vertical section through the disk. 



Fig. 7. Tripodictya triacantha, n. sp,, . . . . x 400 505 



Fig. 8. Tripodictya trigonaria, n. sp., . . . . x 400 505 



Fig. 9. Tripodictya tribelonia, n. sp., . . . . x 400 505 

 Vertical section through the disk. 



Fig. 10. Xiphodiclya amphibelonia , n. sp., . . x 300 503 

 Marginal view. 



Fig. 11. Xiphodictya amphirrhopalia, n. sp., . . . . x 400 504 



Fig. 12. Xiphodictya staurospira, n. sp., . . . . x 500 504 



