PLATE LIV. 



CASSIDULINA. — BULIMINA . 



Diam. Page 



Figures 1-3. — Cassidulina laevigata, d'Orbigny, . . . x 75 428 



Fig. 1. a, Superior lateral aspect ; 6, inferior aspect ; c, 



peripheral aspect. 

 Fig. 2. Specimen with carinate margin. 

 Fig. 3. Specimen with serrate keel. 



4, 5. — Cassidulina crassa, d'Orbigny, . 429 



Fig. 4. a, Superior lateral aspect ; b, inferior aspect ; c, 



peripheral aspect, 

 Fig. 5. a, Superior lateral aspect ; b, inferior aspect ; c, 



peripheral aspect, 



11-16. — Cassidulina parlrrin no, Brady. . 



Figs. 11-14. Lateral aspects ; figs. 15, 1G, oral aspects. 



j; 17. — Cassidulina subglobosa, Brady, 



a, Lateral aspect ; b, c, ventral and dorsal peripheral 

 aspects. 



18. — Btdimina contraria, Keuss, sp., 



a, Superior lateral aspect; b, inferior aspect; c, peri- 

 pheral aspect. 



x 60 

 x 75 



„ 6-10. — Cassidulina bradyi, Norman, . • . x 75 431 



Fig. 10. a, Superior lateral aspect; figs. 6, 7, 10 b, inferior 

 aspect; fig. 8, peripheral aspect; fig. 9, oral 

 aspect. 



x 75 432 



x 60 430 



x 60 409 



