290 



VERTEBRATE ZOOLOGY 



pi'esent volume forbid any but the most cursory treatment of this 

 immense and extremely attractive assemblage of modern verte- 

 brates. Our plan will be to give a brief characterization of each order, 

 to indicate the various groups that comprize it, and to select a few 



i^ 



Fig. 155. — Ichttiyornis viclor. Restored skeleton, 

 after Marsh.) 



(From Parker and HaswelL 



of the most interesting or significant species for illustrative types- 

 In many cases the species singled out for description are of no 

 more intrinsic interest or importance than many others that might 



