-20 RATITiE. 



The tarso-motatarsiis may be either long and slender (fig. 58), or 

 short and wide (fig. GG), and its anterior surface may or may not be 



Pig. 55. 



Dinornithidce. — Ventral aspect of mandible. A. Dmornis maximits, about ^. 

 B. Anomalopteryx parva ; ^. C E?neus, sp., -ij. D. Pachyornis elephmi- 

 tcjms, rather less than ^. 



grooved ; the second trochlea is longer than the fourth, the third is 

 not pedunculated, and there is no perforation in the groove between 

 the third and fourth trochlese. In the tibio-tarsus (figs. 54, 65) 

 the cnemial crest rises well above the head ; the extensor groove 

 is separated by a considerable interval from the inner border of the 



