393 
9. The Saline River basin, in the southeastern part of the state. 
10. The Cairo district, the driftless area of extreme southern IIli- 
nois, 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 distribution 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 in- 
dicates that the species occurs in the basin mentioned at the head 
of the column, but that it is not represented by preserved collections 
affording numerical data. 
INTERIOR DISTRIBUTION OF ILLINOIS FISHES BY RIVER SYSTEMS 
SPECIES AND NUMBER OF COLLECTIONS OF EACH 
Districts | Sections 
a | 
| wd | | 
0 g | | 
i) 
| yell | 
BS = il = | a 
\"G | 5) 
Peoh sell eee 2 | & || 
a eS om | Jae ass = iB 
A)\5/4\)s|) a} & ue = 
3 % n S| ‘DB n | a 2) A = 
| 3 2) 2) s| 2iS)}o fl SE ra 
“4 gi | eh |] ae 4} | S| iS) = ~ =5) 
lh RRS SS BV ery sta ae = ea 
Cuenta gee enlace ol) op 
| | | 
| | | | 
Number of species..... | 44} 92 | 128/57| 97 | 69 | 95] 42) 55} 101)| 120} 123) 119 
| | | | 
Collections made. ..... .| 13} 73 |1115| 20| 57 | 41 | 103] 10] 18] 95] 269/1083) 192 
silvery lamprey........ Sia 0|f) Le elie ait | air lacie nil a ap || se || ae 
Brook lamprey......... He eet test amd Pat rere eo el a tO) 
Daddlecishtnes yn cs Ceca eS Mall eodese che (ecole ah A Oe hee ee 
Lake sturgeon......... SS cllecealll ae ebaae PAS eke bae eee se || ae jar || ak 
Shovel-nosed sturgeon..|...|....] + |...] + Beg la ee + @ se |) ar 
Wie SEMPRE OI 6.2.0) Pa dles |e e'sde echoes a BCE | ee | o]+ |] 0 
Long-nosed gar........|... 120%) 2) tos) fe | 4+ |+ | + 
