EXPLORATIONS OF THE ALLEGHANY REGION AND WESTERN INDIANA. 101 
September 17. — At Mishawaka, Ind. 
September 18. — At Plymouth, Ind. 
September 19. — Lake Maxinkuckee. 
September 20. — At Marshland, Ind. 
September 21. — At Logansport, Ind. 
September 22. — At Camden, Ind. 
Here cold weather caused the reliuquishiuent of the work for the present season. 
On November 5 a small collection was made by Mr. W. E. Olapham in Blue Eiver, 
Columbia City, Ind., and by him turned over to the U. S. Fish Commission. 
A.— THE POTOMAC RIVER. 
The Shenandoah tiiver is one of the chief tributaries of the Potomac, into which 
it flows from the southwest at Harper’s Ferry. The Shenandoah is a comparatively 
clear, swift stream, having its rise in cold springs. It flows between two parallel 
ranges of mountains, chiefly over limestone rocks. In dry weather the waters of the 
Shenandoah are decidedly bluish in hue, like those of most limestone streams, but 
after rains they are stained with the red color of the soil. 
Collections were made at three points in the Shenandoah Valley, as follows: 
1. Shenandoah River (East Fork) at the ford and ferry, 5 miles west-northwest of 
Luray Village. — At this point, below the mill-dam, the stream is rather broad and shal- 
low, with considerable current. The bottom is covered with loose rocks and pebbles, 
with occasional outcrops of rocks in place. In some quiet spots the bottom is rather 
muddy, and there are numerous water weeds. This is a good locality for seining, but 
fishes are somewhat scarce, and not many kinds were found. The temperature July 
26 was 78° Fahr.i 
2. Haicksbill Creek from Luray to a point about one-half mile below the town. — A 
rather swift, shallow stream, 8 or 10 feet in width, the bottom very stony, and slimy in 
the quiet places. The water is warm and far from clear, being stained yellow by 
clay. Temperature July 25 was 80° Fahr. 
3. Shenandoah River (East Fork) at Waynesborough, Va. — At this point, near its 
source, the river is clear, flowing over a rocky or grav'elly bottom. The water is cold, 
most of it coming from a few large sjirings, some of them near Waynesborough, all 
within 4 or 5 miles of the town. The temperature July 27 was 09° Fahr. 
In the following list of species those found in the Shenandoah River near Luray 
are marked S, those in Hawksbill Creek H, and those at Waynesborough W. 
1. Ameiurus nebulosus (Le Sueur). S.,H. 
Small specimens common in mud and weeds. A. 21. 
2. Noturus insignis (Richurdsou). “ A/ad-Tom.” S., H. 
Rather common among weeds. Well known to the negroes here, as elsewhere in 
Virginia, by the appropriate name of Mad-Tom. Color, light yellowish brown; the dor- 
sal, anal, caudal, and pectorals edged with black in the adult. 
3. Anguilla anguilla (L.). “FeL” H. 
Frequently taken. 
4. Catoatomus teres (Mitchill). S., H., W. 
Very common in sluggish waters. 
•All of tlie temperatures mentioned iii this report relate to the water in the streams. 
