BIRDS BOMBYCILLIDAE CICELOPSIS. 
319 
Bill rather narrow. Tarsus bare above, scutellate. Wings shorter than the tail ; first quill 
scarcely spurious, half the second, -which is much graduated ; the third to sixth slightly grad- 
uated. Tail rounded, graduated. Feathers broad, widening to the tip. 
Myiadestes. — Head scarcely crested. Culmen straight to near the tip. 
broad. Tarsi without scutellae, (except in the young ?) Wings very long, 
tail ; the first quill very short ; the second, but not the third, graduated, 
lateral feather graduated ; feathers broad, tapering to the tip. 
Comparative measurements. 
Bill moderately 
longer than the 
Tail forked, the 
Length. 
Wing. 
Tail. 
Tarsus. 
Middle 
Its claw 
Bill 
above. 
Along 
gape. 
Remarks. 
7.50 
3.63 
4.36 
0.08 
0.70 
0.40 
0.64 
7.50 
3.52 
4.04 
0.70 
0.72 
0.20 
0.42 
Dry 
3.56 
4.15 
0.07 
0.74 
0.20 
0.42 
0.70 
7.62 
3.88 
4.10 
0.82 
0.80 
0.20 
0.44 
0.70 
Dry 
8.00 
4.60 
4.46 
0.82 
0.84 
0.26 
0.42 
0.70 
Dry 
2966 Ptilogonys cinereus 
Myiadestes obscurus. . . 
4451 Myiadestes townsendii. 
Colorado de ert. 
'Orizaba.. 
Des Chutes 
1 Belonging to Mr. George N. Lawrence. 
PTILOGONYS, Swain son. 
Ptilogonys, Swainson, Catal. Mex. Museum, 1824. 
Ptiliogonys, Swainson, Philosophical Mag. I, May, 1827, 368. 
Ptiliogonatus, Swainson, Zool. Jour. Ill, July, 1827, 164. 
Ch. — Head with a full though short depressed occipital crest. Bill broad, much depressed ; sides nearly straight ; greatest 
width equal to the length of culmen. Rictus witli short bristles. Nostrils oval, margined by membrane, except below. Tarsus 
shorter than the middle toe, scutellate ; a few feathers on its upper extremity anteriorly ; outer toe a little longer than inner, 
about equal to the hinder ; hind claw not half the total length of the hind toe. Tail longer than the wings ; slightly forked, 
but the lateral feather nearly .20 of an incli shorter than the next ; the feathers narrow linear. First primary about one fourth 
the longest ; the second and third much graduated and acuminate ; the fourth longest and rounded. 
I introduce the description of the genus Ptilogonys here to show its relationship to the United 
States species, especially, too, as the P. cinereus, the type, will most probably be found within 
our own territories. 2 
CICHLOPSIS, C a b a n i s . 
Cichlopsis, Cabanis, Mus. Hein. 1850- '51. Type C .leucogenys. 
Ch. — Head with an occipital crest of long narrow feathers. Bill weak, depressed, decidedly narrower than the length of 
culmen. Base of bill with short bristles. Tarsi scutellate, bare above ; shorter than the middle toe ; outer lateral toe rather the 
longer ; equal to the hinder. Wings and tail rather long ; the former shortest ; the first quill half the length of the second, and 
two fifths the fifth, or longest. Tail feathers broad, widening to the rounded tip ; the tail moderately graduated ; the middle 
ones longest. 
Ptligonys cinereus, Swainson. 
"Ptilogonys cinereus, Swainson, Catal. Mex. Mus. 1824, App. page 4." — Bon. Consp. 1850, 335. — Cabanis, Mus. 
Hein. 1851, 55. 
Ptiliogonatus cinereus, Swainson, Zool. Jour. Ill, July, 1827, 164.— Ib. Phil. Mag. I, 1827, 368.— Ib. Zool. 111. ; pi. 
lxiv. 
Ptiliogonys cinereus, Swainson, Zool. III. tab. Ixii. 
" Hypotkymis chrysorrhaea, Licht." Temm. PI. Col. 452. 
General color light plumbeous grey, becoming' whitish on the forehead and chin. Sides of head light smoke brown, with a 
white ring round the eye. Quills and tail greenish black, edged with plumbeous, the former margined internally witli white ; 
the tail feathers with a large white patch on the inner webs on the middle third. Sides of body and belly behind greenish 
yellow, becoming clear yellow on the under tail coverts. Bill and feet black. Length, 7.60 ; wing, 3.5G ; tail, 4.51 .(No. 
2966, Mexico.) 
