NOTES ON THE FISHES AND MOLLUSKS OF LAKE CHAUTAUQUA, 
: NEW YORK. 
By BARTON WARREN EVERMANN anp EDMUND LEE GOLDSBOROUGH. 
In the last week in September, 1901, the senior writer of this paper 
spent four days at Chautauqua Lake, during which time he obtained 
specimens of most of the species of fishes and mollusks which inhabit 
it, together with a number of notes and descriptions on some of the 
more important species. Collecting was done in Clear Creek and 
Black Creek, small streams which enter the lake on the west side at 
Lighthouse Point, in the lake about their mouths, and at the various 
places along the north and northeast shores of the lake. Mollusks 
were also collected at different points about the north end of the lake. 
Lake Chautauqua les in the central part of Chautauqua County, 
which is situated in the extreme western part of the State of New 
York. The lake is a long and narrow body of water, with its main 
_ axis lying in a northwest and southeasterly direction. The length of 
the lake is about 22 miles, and the width varies from 3 miles to scarcely 
more than a quarter of a mile in its narrowest place. The greatest 
depth of the lake is said to be 80 feet, at a point between Chautauqua 
and Long Point. The water is said to be 62 feet deep quite close in 
to Long Point; but the greater portion of the lake is relatively shal- 
low, and the depth probably does not average greater than 20 feet. 
The entire northern end seems quite shallow, probably not exceeding 
15 or 20 feet at any place. 
The lake is surrounded by gently sloping hills, the highest rising 
200 or 300 feet above the water surface. These hills are, as a rule, 
all cultivated to the summits, and doubtless much sediment is carried 
into the lake from surface erosion on the surrounding cultivated 
ground. The shores of the lake are usually moderately abrupt, 
though nearly everywhere there is a strip of beach, more or less nar- 
row and frequently wet or marshy. At the north end is a consider- 
able tract of low ground, moderately timbered and inclined to be 
marshy. Around the shores and in shallow water are good growths 
of Scirpus, and water lilies were noticed in a few places. In the 
water were noted also such aquatics as Myriophyllum, Ceratophyllum, 
Potamogeton, and the like. 
The elevation of the lake above sea level is given as 1,291 feet, and 
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