PHYLOGENT OF THE PAL.EOGNATH^ AND NEOGNATH^. 



Fig. 2. 



A. 



B. 



155 



D. 



E. 



A. — Left foot of a nestling Casuariiis casvaruts schteri, to show the arrangement of the scutes of the podotheca. 

 a. — Left foot, anterior aspect, of Casuarius lorice, for comparison with A, to show the large hexagonal 

 plates clothing the proximal portion of tho tarso-metatarsus. 



C. — Left foot of a newly hatched Dromaiis novce-lioUandic, to show the arrangement of the scutes of the 

 podotheca, and the curious continuation of the pattern of coloration of the hody down to the toes., 



D. — Left foot of a ripe emhryo of Rhea americana, to show the arrangement of the scutes. Note the presence 

 of feathers (/) on the tarso-metatarsus- — temporary in this species, permanent in if. darwini. 



E. — Left foot of an embryo Ajyieryx australis mantelU, to show the form of the scutes of the podotheca. 



