U. S. NATIONAL MUSEUM 



PROCEEDINGS, VOL. 48 PL. 23 



h h^ 



T.» 



. - - , ff . n in. ' '"" : '<" 



>t+j*^&* % i. 



v33D* ^-^Jf "* 



ZOs 



Jaws of Myrmecoboides and Myrmecobius. 



For explanation of plate see page 395. 



