EXPLORATIONS OF THE ALLEGHANY REGION AND WESTERN INDIANA. 161 
{Noturus nocturnus, Etheostoma uranidea, E. ouachitce, E. histrio) supposed to be con- 
fined to the rivers of Arkansas, as well as of other species {E. phoxocephalum, E. 
chlorosoma, E.jessice, E. shumardi) more at home on the western side of the Mississippi. 
A similar feature in distribution is the presence along the Lower Wabash (accord- 
ing to Prof. John M. Coulter) of numerous southwestern plants, nowhere else found 
so far north. 
1. Wabash River at Vincennes. September 15; temperature 74°. Collections 
were made at a point 1^ miles north of Vincennes. Here the river is shallow on the 
Indiana side. No great depth is reached within a hundred yards of the shore. The 
bottom is of gravel and sand at this point, the gravel near shore being covered with 
Spirogyra and other algae. The current is swift, although not breaking into rip- 
ples. Some muddy bayous tributary to the river were also seined. Species from 
the Wabash at Vincennes are marked V. 
2. Wabash River at New Harmony. September 13; temperature 74°. Many years 
ago the New Harmouy “ community ” dug a canal across the peninsula just below 
New Harmony. At the lower end of this “ cut-off” was built a dam and a mill. The 
main current of the Wabash now flows through this channel. Collections were made 
at the old dam. At this point the bed of the stream is of sandstone. The current is 
broken up into narrow rapids and little falls, furnishing excellent localities for darters. 
Collections were also made on a shallow gravel bar near the mouth of Black River, 
near New Harmony. Species from the Wabash River at this point are marked W. 
A number of species from the Wabash River at New Harmony were seen in the col- 
lection of Mr. James Sam^ison, of New Harmony. Such species are marked S. 
3. Black River at New Harmony. September 12; temperature 76°. This is a 
small stream with muddy bottom and sluggish current. Collections were made from 
a point some 300 yards above the mouth down to the mouth of the stream. In one 
place the stream flows over gravel with considerable current. Species taken in Black 
River are marked B. 
4. Gresham’s Creek, New Harmony. September 12; temperature 77°. Collec- 
tions were made at a point l^ miles east of New Harmony. The stream is very small 
and shallow, the water a few inches deep, the bottom and shores sandy. Species 
obtained in Gresham’s Creek are marked G. 
5. Patoka River at Patoka, Gibson County. September 14 ; temperature 75°. 
The Patoka is a very sluggish and muddy stream of considerable size. It rises in the 
central part of southern Indiana, and flows westward, entering the Wabash near the 
mouth of White River, about half way between Vincennes and New Harmony. At 
the point examined at Patoka (just below the dam and one-fourth mile below the 
Evansville and Terre Haute Railroad bridge) the stream is shallow and swift for a hun- 
dred yards or more, and the bottom is covered with shingle from an outcropping ledge of 
coarse shale. Darters are abundant, the species being nearly the same as those found 
by Jordan & Gilbert in a similar stream; Poteau River, in Indian Territory. Species 
from Patoka River are marked P. 
6. Big Creek, Lynn Township, Posey County, Ind. September 10; temperature 
77°. Big Creek is a small, sluggish stream with warm and muddy water, and bottom 
and banks of mud. It flows westward through Posey County, entering the Wabash 
River below New Harmony. Collections were made at a point 6^ miles north of Mount 
Bull. U. S. F. C., 88 11 
