PREFACE. Vv 
it had received the Linnean stamp of authority. One hundred and twenty spe- 
cies are enumerated, of which thirty only are accompanied with detailed descrip- 
tions. The celebrated ichthyologist Bloch added a few notes to this memoir.* 
Bose, and a few other naturalists, had communicated to Lacépéde some isolated 
species after this period; and Dr. Peck had described, in the Transactions of the 
American Academy of Arts and Sciences at Boston, a few more; but, with these 
exceptions, our knowledge on this subject remained nearly stationary until 1814, 
when Dr. Mitchill published a small tract, which may be said to have given a 
new impulse to the study of American ichthyology. It contains original and 
detailed descriptions of forty-nine species, with a simple catalogue of twenty-one 
more. On the titlepage of this little tract, he states that “a very considerable 
number of these beginnings of an attempt are not even named in the present list, 
because they have not come to hand during the few weeks that have elapsed 
since its commencement.” It does not, however, appear to have attracted much 
attention abroad, and is only cited in the latter volumes of the great work on 
Fishes of Cuvier and Valenciennes. About the same period he published in the 
American Medical and Philosophical Register, conducted by Drs. Hosack and 
Francis, a paper on the Cod-fishes of New-York, in which he enumerates eleven 
species and six varieties of that family. In December of the same year, he read 
before the Literary and Philosophical Society of New-York, a paper entitled 
“The Fishes of New-York, described and arranged;” which was shortly after 
published in the Transactions of that Society. In this paper, which at that 
period was the most important and valuable essay on the fishes of the United 
States, he describes (deducting the foreign and doubtful fishes) one hundred and 
thirty-four species, illustrated by six copperplates, containing seventy small but 
quite recognizable figurest In February, 1818, he published a supplement to 
* Scheepff appears to have been a man of varied attainments, and has left several works relating to the natural history 
of this country, the most important of which is his Historia Testudinum. He is the author of two volumes of travels in 
the United States, and of a work on its geology, under the following titles : 
1. Reise durch einige der mittlern und sudlichen vereinigten Nord Americanischer Staaten, 2 vols. 8vo, Erlangen, 1783. 
2. Beytrage sur mineralogischen kentniss der ostlichen theil von Nord America und seiner geburge. pp. 194. Erlangen, 1787. 
Neither of these, we believe, have been translated into our language. 
+ This memoir is spoken of by Cuvier in the following terms :*“‘ Thus there had scarcely been in the eighteenth century 
any thing on the fishes of North America, except the work of Catesby, and what had been inserted by Pennant in his 
Arctic Zoology. But in 1815, Dr. Mitchill, a learned physician of New-York, gave a history of the fishes in the vicinity 
of that city, in which he described one hundred ond forty-nine species, distributed after the system of Linneus, with well 
