EXPLORATIONS IN COLORADO AND UTAH. 
35 
fully with others from Walla Walla, and differ from those taken in the headwaters of 
Madison Kiver in the deeper body, longer head, larger scales, and higiier tins. 
The following gives the measurement of a number of specimens: 
Locality. 
Head. 
Hop til. 
Scales. 
D. loiigevst 
ray iji liead. 
P. in head. 
V. in liead. 
Jonlau E-ivor 
n 
77 
li 
n 
1* 
Provo River 
76 
li 
n 
M.adison River 
if. 
5 
82-8,'i 
if 
li 
li 
13. Cottus bairdi punctulatus Gill. P. ( Uranidea vheeleri Co])c.) 
A few specimens, dark in color and much mottled ; axil a little rough, otherwise 
like specimens from the Colorado basiu and from Gibbon Eiver, 
14. Cottus semiscaber (Coiie). 
Not rare in the Provo; distinguished from the jjreceding by its prickly skin; also 
paler in color, with much black mottling. D. VII, 16. This species is well described 
by Jordan & Gilbert, Synopsis, p. 695. 
PISHES OF THE SEVIER RIVER, 
The Sevier Eiver rises in Panquitch Lake, in southern Utah. This lake is in the 
mountains and is noted for its trout and whitefish. The river, after leaving the 
mountains, flows northward through a desert country. Its largely alkaline waters are 
drawn off' for irrigation and are reduced by evaporation. It is ultimately lost in a 
large alkaline pool or sink known as Sevier Lake. In this lake are no fishes. 
The Sevier Eiver was seined about the railroad bridge, some 7 miles west of the 
village of Juab. The river has here a bottom of gravel and firm sand or adobe. It is 
about 2 rods wide and 1 to 4 feet deep. The water is somewhat muddy, warm (73°), 
and full of small fishes. It is said that trout {Salmo myldss virginalis) and whitefish 
{Goregomis tcilliamsoni) descend the river in the spring as far as Juab. 
In this and similar streams through the Great Basiu catfishes might be placed to 
advantage. 
Chicken Lake is a shallow alkaline pond, about a mile long by half a mile broad, 
between Juab and the Sevier Eiver. It is muddy and full of bulrushes where shallow, 
and of Confervce and Myriojghyllum where deep. It is fed by springs. Its outlet is a 
small brook which flows into the Sevier at the railroad bridge. The waters of Chicken 
Lake are alive with chubs ( Leuciscxis atrarius) and there are some suckers ( Catostoxmis). 
1. Pantosteus generosus (Girard). 
Very abundant. 
2. Catostomus ardens (Jordan and Gilbert). 
Abundant, as in Jordan Eiver. 
3. Leuciscus montauus (Cope). 
Common, very pale, as all fishes are in alkaline waters; no red and no black lat- 
eral stripes. 
4. Leuciscus atrarius (Girard). 
Exceedingly abundant;' none seen large. 
