SiirKKi. DT : ( )siK()i.()(;v oi' iiik T,imu<)i..ii:. 



r.3 



iiii|ircs>c(l. and a proniiiiriil tulicrck' arises between iheni on the ante- 

 rior rim (Fig. 23, tm). liehind, the hypotarsus is bulky, being both 

 grooved and pierced for the passage of the tendons. The shaft of this 



Fk;. 24. Skull oi ILrmatopiis hackmani, left lateral view ; natural size. 



Flc. 25. Mandilile of Hicmatopus backmani, viewed from above ; natural size. 



Fic. 26. Skull of /Li'/imfopin backinaiii, su]H'iior us]H'Ct ; natural size ; mandible 

 removed. 



Fk;. 27. Skull of Iliematopus hackmani, basal view ; mandiijlc icniovt-d ; natural 

 size. 



Figs. 24, 25, 26 and 27 are all drawn by the author from the skeleton of the same 

 individual (\f>. 13,636 of the Smithsonian ( 'ollcetion ). 



