LIST OF MAPS 



The general map of the distribution of collections (Map IV.) shows, by the 

 location of the red spots, all the localities from which collections of fishes have 

 . been made by us in the work of the Natural History Survey. The distribution maps 

 for the various species indicate in the same way all the localities from which repre- 

 sentatives of the species have been taken. For an accurate idea of the significance 

 of these species maps, each should be compared with M'ap IV. 



The following numbered list of the counties of the state corresponds to the 

 figures on these maps. 



1. Jo Daviess 



2 . Stephenson 



3. Winnebago 



4. Boone 



5. McHenry 



6. Lake 



7. Cook 



8. Du Page 



9. Kane 



10. DeKalb 



1 1 . Ogle 



12. Lee 



13. Carroll 



14. Whiteside 



15. Rock Island 



16. Mercer 



17. Henry 



18. Bureau 



19. Putnam 



20. La Salle 



21. Kendall 



22. Grundy 



23. Will ' 



24. Kankakee 



25. Iroquois 



26. Ford 



27. Livingston 



28. Marshall 



29. Woodford 



30. Stark 



31. Peoria 



32. Knox 



33. Warren 



34. Henderson 



35. Hancock 



36. McDonough 



37. Fulton 



38. Mason 



39. Tazewell 



40. McLean 



41. Vermilion 



42 . Champaign 



43. Piatt 



44. Dewitt 



45. Logan 



46. Menard 



47. Cass 



48. Schuyler 



49. Brown 

 50* Adams 



51. Pike 



52. Scott 



53. Morgan 



54. Sangamon 



55. Christian 



56. Macon 



57. Moultrie 



58. Douglas 



59. Edgar 



60. Clark 



61. Coles 



62. Cumberland 



63. Shelby 



64. Montgomery 



65. Macoupm- 



66. Greene 



67. Calhoun 



68. Jersey 



69. Madison 



70. Bond 



71. Fayette 



72. Effingham 



73. Jasper 



74. Crawford 



75. Lawrence 



76. Richland 



77. Clay 



78. Marion 



79. Clinton 



80. St. Clair 



8 1 . Monroe 



82. Randolph 



83. Washington 



84. Perry 



85. Jefferson 



86. Wayne 



87. Edwards 



88. Wabash 



89. White 



90. Hamilton 



91. Franklin 



92. Jackson 



93. Williamson 



94. Saline 



95. Gallatin 



96. Hardin 



97. Pope 



98. Johnson 



99. Union 



100. Alexander 



101. Pulaski 



102. Massac 



I. & II. The three sections of Illinois, northern, central, and southern, and 

 the ten stream systems of the state: I., the Galena District, II., the Rock 

 River System, III., the Illinois River System, IV., the Lake Michigan 

 drainage, V., the Mississippi River drainage, VI., the Kaskaskia River 

 System, VII., the Wabash System, VIII., the Big Muddy River System, 

 IX., the Saline River System, and X., the Cairo District. 



III. Glacial geology of Illinois. 



IV. Localities from which collections were made. 

 V. CII. Distribution of species. 



CIII. Northern species () and southern species (A) in Illinois. 



