jfOLLUSCS 



Plate I 



Fig. 1. Map of Curasao, adapted from Xetherlands Government 1/20000 topographic maps. 

 Contour intervals 50 meters. The stippling indicates the approximate extent of the limestone. 



Fig. 2. Map of Klein-Curasao, reduced from U. S. Hydrographic Office chart, number 2154. 

 Jcale as in fig. 1. 



Fig. 3. Map of Aruba. Source, contour interval, scale, and stippling as in fig. 1. 



