PLATE XXXV. 



Lepidocyclina duplicata Cushman (p. 78). 



Figure ]. Exterior view of type, X 5, showing raised center and -depressed area inside the raised periphery. Lime- 

 stone 2 miles north of David, Panama (U. S. G. S. station 6523). 



Figure 2. Portion of vertical section, X 20, showing great increase in width of equatorial zone, multiplication of the 

 chambers toward the periphery, heavy pillars, and wide lateral chambers. Same locality as figure 1. 



Figure 3. Portion of oblique section, X 20, showing pillars and lateral chambers with a few equatorial chambers 

 having perforate peripheral walls. Same locality. 



Lepidocyclina antillea Cushman (p. 78). 



Figure 4. Vertical section, X 20, north 67° east from summit of Negre Point across low saddleback of point, St. Bar- 

 tholomew, Leeward Islands (U. S. G. S. station 6903). 

 Figure 5. Distribution of pillars and lateral chambers in horizontal section, X 60. Same locality as figure 4. 



131049°— 20 10 105 



