414 
FisHES OF LimITED DISTRIBUTION IN ILLINOIS—concluded 
Illinois Distribution General Distribution 
Viviparous top-minnow | Southern 
Lepomis symmetricus 
Cottogaster shumardt | General 
Green-sided darter 
Etheostoma squamiceps | Southern 
An examination of the general distribution of the species of these 
sectional lists of Illinois fishes shows, as was to have been expected, 
that the distinctively northern Illinois fishes are chiefly northern in 
their outside range, and that those of southern Illinois are mainly 
southern. Thus, of the 14 especially northern Illinois fishes, 11 are 
northerly in their general distribution and 1 is southerly ; while of the 
9 distinctively southern Illinois species, 6 are southerly in their gen- 
eral range, 1 is western, and 1 is a cave-fish local to Illinois. The 
species found in the northern and central sections of the state and 
not in the southern are varied in their distribution, 6 of them ranging 
northward from Illinois, and 4 of them in all directions, while 1 has 
been thus far found in Illinois only. The central and southern fishes, 
on the other hand, comprise 7 southern species, 1 of northern and 8 
of general range, and 1 whose distribution is not recorded. Includ- 
ing only species whose general area shows that their restricted occur- 
rence in Illinois is a feature of their geographical distribution at 
large, and excluding fishes specialto the Great Lakes,we have twenty- 
six species whose distribution in this state seems limited by condi- 
tions connected with differences in latitude merely—twelve of these 
species essentially northern and fourteen of them southern. 
