192 THE C O A I T A, &c. 



rences, however, are not fufEcient to conftitute 

 two diftind fpecies ; efpecially as fome coaitas 

 are not entirely black, but are whitifh on the 

 throat and belly. The females of thefe two 

 fpecies are not fubjedt to the periodical evacua- 

 tion. 



1 



The 



