61 
AMERICAN TUFTED DUCK. 
^JV^S RUFITORQUES. 
[Plate LXVII.— Fig. 5, Male.'] 
Journal of the Academy of Natural Sciences of Philadelphia, vol. Ill, p. 385 ; plate 13, figure 
6, the Trachea. 
IT is remarkable that our author should not have observed 
the difference between this species and the fidigula of Europe ; and 
still more worthy of note that Mr. Temminck, whose powers of 
discrimination are unusually acute, should also have been misled 
by the opinions of others, and concluded, with Wilson, that the 
Tufted Duck figured in our plate was of the same species as the 
Tufted Duck of Europe. The only apology which we can make 
for our author is, that he had never had an opportunity of examin- 
ing a specimen of the fuligula ■, otherwise the specific differences 
of the two would have been obvious at the first glance. The bdl 
of the fuligula has not those white bands or markings which are 
so conspicuous in our bird, its neck is also destitute of the chest- 
nut collar ; the speculum of the former is pure white, that of the 
latter is pale ash ; and, what is a still more striking characteristic, 
its head is merely tufted, while the fidigida’s is ornamented with a 
pendent crest, of two inches in length. 
The credit of having been the first to publicly announce our 
bird as a new species belongs to Mr. Charles Bonaparte, who, in 
the publication quoted at the head of this article, has given a com- 
parative description of the two birds, and named the subject of 
this article rufitorqiies. 
VOL. VIII. 
Q 
