auspices of the New York Academy of Sciences, the American 

 Porto Rico. The Cuban specimens were collected by Brothers 



200, of which about 50 are identifiable species or genera. Most 

 of these have been figured and a number of provisional identi- 



The geologic age of all the collections is apparently Tertiary 



dad and Santo Domingo specimens appear to be more recent- 

 probably Miocene. The Cuban specimens are the most recen 

 and may represent, at least in part, merely remains of the veg 



rrive. When divided up into exch 

 mn two thousand specimens. 







