THE CAROLINA BAT 



175 



We have now noticed the main groups of bats which 

 inhabit the workl in our day; but we know Uttle 

 indeed of l3ats which inhabited it in earher epochs. The 



Fig. 43. 



THE COLUGO. 



oldest known remains are but fossils found in tertiary 

 deposits, and they offer us no stai-tling revelation. 



Some form of existing beasts which are now distinct 

 enough (such as the ox, the pig, and the horse) w^ere pre- 

 ceded in early tertiary times by others which were more 



