SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 81 , NO. 9, PL. 4 



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( All figures natural size ) 



1. Hlasiiiodoiitoniys obliqiius Anthony. Immature, with third molar 



not yet above level of alveolar rim. Xo. 17137 h. .\mer. Mus. 

 Xat.' Hist. 



2. Oiiciiiisia cjnn'is Miller. Type. Same stage of growth as hg. 1. 



In both specimens the alveolus of the incisor has been tapped 

 at its base and a black thread pas^^ed through the tube. 



