EXPLANATION OF PLATE 11. 



ri(';TTRKs. 



1. Notoryrteji typhlops. Side view (nat. .^ho.). The small orifice at the 



posterior part of the head is the meatus aiiditorius externus, from 

 which the fur has Ijeen l^rushed aside for better representation. 



2. Foreshortened view of the snout and mouth. The line a points to the 



nostrils and h to the mouth. 



