PLATE XXV. 



Figure 1. Cornuspira involvens Reuss. iSiile view. X 100. 



2. Spirolocidina grateloupi D'Orbigny. Side view. X 80. 



3. S piroloculina imprimata Cushman, n. sp. a, Side view. X -10. h. Surface detail. X 200. 



4. S piroloculina hyramenm Cushman, n. sp. o, Side view of a partly broken specimen. X 40. h, Surface 



detail. X 200. 



5. Vi'iiehrallna advenn Cushman, n. s]). Side view of an adult sjierimen. X SO. 



6. I'('rtt'/;ra/('»a orfi'f/ia Cushman, n. sp. Side view of a young specimen. X 80. 



7. Vertebralina ap.? Side view showing ornamentation. X 80. 



119 



