Stewart.] Cretaceous Fishes. 385 



ON THE RANGE OF AMERICAN CRETACEOUS TELEOST FISHES 

 IN COMPARISON WITH THOSE OF SOME OTHER LOCALITIES. 



After having treated the teleost fishes of the Kansas Creta- 

 ceous to as full an extent as our material will allow, I think 

 it will be well now to devote a little space to tables show- 

 ing their range in geological time, as well as to compare the 

 fauna with those of some of the otherjprincipal localities that 

 have yielded Cretaceous fishes. This work has already been 

 done with the fish faunas of Syria and Westphalia by Doctor von 

 der Marck, in his able paper entitled " Uber die Verwandschaft 

 der syrischen Fischschichten mit denen der obern Kreide West- 

 falens," but as yet I believe no work of this nature has been 

 done with the fish faunas of America and England. In the 

 present attempt, the selachians'and ganoids will be omitted, as 

 they are beyond the scope of the foregoing paper. The species 

 of each genus are also omitted, as the other localities are so 

 widely separated from America as to have no great similarity 

 in this respect. The tables of Syrian, Westphalian and Eng- 

 lish genera have been copied from the works of Davis, von der 

 Marck, and A. S. Woodward. The^list of American genera has 

 been collected from the various government reports and scien- 

 tific journals in which they have been described, and is thought 

 to be fairly complete, although there may be a few genera which 

 have escaped my notice. 



Notwithstanding the fact that very little has been done on 

 Cretaceous ichthyology in America during the past two de- 

 cades, twenty-six genera have already been described from its 

 deposits, and from the rich fish faunas of some of the localities 

 we may expect that in after-years the number will be mate- 

 rially increased, when more carefully and systematic collections 

 are made with this end in view. 



Following is a table showing the distribution of the American 

 genera in time, the most of which have been found in Kansas : 



