V\\> 



PLATES IN VOL. XX. 

 Platk I, -J 



■ ^ Xpw TTntPvorprn from Tlntoli X<'w (iiiiiiPa. 

 IILl 



IV. ^ 



yW Xew t'urms of Ileliconius. 



VII. New CleometmUe. 



VIII. PoIyptycliiLS lapidatus and Thibctia uijtbnpliylla. 



IX. Demodex ratti and D. musculi. 



X. Skull and teeth of Tritylodon, Cynognatbus, acd Diademodon. 



