CUSHMAN 



PLATE 10 



1. Orthophragmina jntalnlnta, n. sp. Oblique section. X 16. Cuba. Station 34 lv 

 _'. Section of rock from Cuba, Station 6125, showing vertical sections of Orthophragmina crnssa, 

 n. sp. (large), O. cubcnsis (small at bottom), and O. subtaramcUci, at risiht. X 16. 



3. Section of rock from Cuba, sections of Orthophragmina cubensis. X 16. 



4. Section of rock from Cuba, Station 3476, showing several sections of Orthophragmina c>i1n-ti.-<ix, 



n. sp. on right and one of O. crassa, n. sp. on left. 



