iCHTnTORNrxnTD.i:. 



201 



Faiiiilj ICHTHYOENITIIIDvE. 



Inthetyp;calM^o.«/,(fig.45), of .bo North-An>ericau Cretaceous, the 



and .eflected and a very shght talon ; the tibio-tarsus has no extensor bridge ■ 

 t ,0 eoraooul has a produced hyosternal proeess, as in t],e Gavi^ and Limicol. •' 



;Tel 1 "T''''^""''"'^''^^' '■"'• '^' '""'•'"""^ deyelopn,ent of the delto- 

 pectoral crest. Apatonus, of the sa.ne deposits, appea,-s to be an allied genus. 



» 



Ichthyornis !'/c/or.-Ecstoration oflhe skeleton ; from the Cretaceous 

 of Kansas, h. {Afier Mai-y//.) 



