U. S. NATIONAL MUSEUM 



PROCEEDINGS. VOL. XXI PL. XXIX 



Fig. 1. OniscodesmuH oniacinug. 

 Via. 2. fJniscodemmm rnicrurus. 



American Oniscoid Merocheta. 



Fig. 3. Cyrtodesmua velutinim. 



For explanation of plate see page 467. 



