1G PALAEONTOLOGY OF ILLINOIS. 



Of the 118 species of fishes described and illustrated at this 

 time, 16 are from the Coal Measures, 17 from the Chester 

 limestone, 18 from the St. Louis limestone, 49 from the Keokuk 

 limestone, 14 from the Burlington limestone, 3 from the Kin- 

 derhook group, and 1 from Devonian strata. 



A. H. W. 



