a 
BIRDS—FRINGILLIDAE—COCCOTHRAUSTINAE, AOT 
to think that this is the case throughout the F’ringillidae. Thus, in the genus Carpodacus, one 
species, C. frontalis, has the bill so short and much curved as to resemble Pinicola or Pyrrhula, 
. while the C. cassinii has a bill which, in its elongation, size, and general shape, is nearer to 
that of Hesperiphona than any other of our birds, except, perhaps, Cardinalis, The same is 
true of Plectrophanes, Chrysomitris, &c. 
None of the species of Plectrophanes, excepting P. nivalis, exhibit the peculiar series of 
feathers along the base of the upper mandible, or else in very limited extent ; but, as the other 
characters are as described, I have thought it best to continue them in their present association, 
notwithstanding this deviation in one character. As already stated, I do not pretend to any 
thing more than a convenient artificial arrangement by which the species may be found, and at 
present see no more eligible place for the species without dividing P. nivalis from all the rest, 
which I am not willing to do. 
At the head of the series I place Hesperiphona, as combining the most typical features of the 
insessorial conirostres, in the enormous bill, long wings, and perching feet, &c. The other 
genera may be arranged in groups, as follows: 
SYNOPSIS OF GENERA 
A.—Bill enormously large and stout; the lateral outline as long as that of the skull. 
Culmen gently curved. 
HesperrrHona.—First quill equal to the second. Wings one-half longer than the 
tail. Lateral claws equal, reaching to the base of the middle claw. Claws 
much curved, obtuse; hinder one but little longer than the middle. Colors 
green, yellow and black. 
B.—Bill smaller, with the culmen more or less curved ; the lateral outline not so long as the 
skull. Wings about one-third longer than the tail or a little more ; first quill shorter than the 
second. Claws considerably curved and thickened ; hinder most so, and almost inappreciably 
longer or even shorter than the middle anterior one. Tarsus shorter than the middle toe. 
Lateral toes unequal. 
a. Colors red. 
Piyrcova.—Bill short, much curved above. Tail nearly even. Middle fore claw 
much straighter, and decidedly longer than the hinder. Outer lateral toe, with 
its claw, reaching beyond the base of the middle claw; a little longer than the 
hind toe. 
Carpopacus.—Bill variable, more or less curved above. ‘Tail forked. Middle fore 
claw scarcely longer than hinder one. Outer lateral toe with its claw, falling 
short of the base of the middle claw; equal to the hinder toe. 
b. Colors black and yellow. 
Curysomrrris.—Bill nearly straight. Hind claw stouter and more curved, but 
scarcely longer than the middle anterior one. Outer lateral toe reaching a 
little beyond the base of the middle claw; shorter than the hind toe. Wings 
longer and more pointed. Tail quite deeply forked. 
C.—Hind claw considerably longer than the middle anterior one, with about the same curva- 
