PLATE XVI. 



Lepidocyclina georgiana Cushman, n. sp. (p. 60). 



Figure 1. Vertical section, X 15, showing the pillars of the central portion. Ocala limestone, east bank of Flint River 

 6 miles above Bainbridge, Ga. (U. S. G. S. station 7130). 



Lepidocyclina hilli Cushman, n. sp. (p. 60). 



Figure 2. Surface view of type specimen, X 15, showing the reticulate character of the exterior \vith the few pillars 

 of the central portion. Guallava sandstone of Costa Rica. 



