lxxxiv 



FISHES OF ILLINOIS 



part of the state. 10. The Cairo district, the driftless area of 

 extreme southern Illinois, drained by the Cache River and 

 smaller tributaries of the Ohio. The Ohio itself is included in 

 this last district. 



The following list and table gives the details of the distri- 

 bution of the species in a way to show the number of collections 

 of each species made by us from each district. A cross opposite 

 a species name indicates that the species occurs in the basin 

 mentioned at the head of the column, but that it is not repre- 

 sented by preserved collections affording numerical data. 



Interior Distribution of Illinois Fishes by River Systems 

 Species and Number of Collections of each 



