» i | « & 
- 
"Rh, N Cottus cognatus, &c. with Cottus gobio. 135 
due A d di ud 
ape - ' 
called quiescens, is identical with the one which had been 
. described so many years before, the Cottus gobio. “ee 
^ If now I have succeeded in establishing the point for which 
- I have been laboring, I have brought in a principle which is 
of some importance. I have proved an exception to what 
Was before regarded as a universal rule — that no fish of 
Europe, which is confined to the fresh water, is also a native 
of America. It is believed that this rule applies to all. It is _ 
true, that in the Fauna Boreali-Americana, Dr. Richardson ^. - 
describes the Pike of Europe (Esox lucius) as an inhabitant 
of the lakes and streams of the Fur Countries. - But there — 
is every reason to believe, that the species which he ob- ^ . 
i tained was merely the one so common in the States, (E. reti? s 
culatus of Le Sueur,) and that the European Pike has. never 
beenfound as a native on this side of the Atlantic. And I 
am not aware that any other fresh water species of Europe 
has been retained by the more recent writers as a fish of this 
country. The fact, therefore, of the apparent universality of 
this rule may seem to some a reason for refusing to believe 
that the species which we have had in view throughout this 
article, is specifically identical with the Millers Thumb of | 
gland. Indeed it was so, at first, with myself; but when I 
mined more closely, and found the matter to stand as I - 
& have endeavored here to state it, I could not resist the accu- 
mulation of evidence. 3 : Fan 
- The gobio, the efore, as a native of America, seems to be 
somewhat widely “dispersed. Dr. Richardson's specimens 
were obtained in the Bear Lake, in lat. 67°; Mr. Haldeman — 
says it occurs in Eastern Pennsylvania ; Dr. De Kay ob 
» in the Northern part of New York ; I have found it in 
necticut, and that it exists in various other parts of the Unite 
_ States is extremely probable. | 
It is only in Connecticut that I have had an opportunity to & 
observe it, and I will mention what little I have learned as to 
it there. I have seen it in but one stream, in Manchester, 
mt seven miles east of Hartford. The stream passes a 4 
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