186 
U. S. P. R. R. EXP. AND SURVEYS — ZOOLOGY — GENERAL REPOET. 
List of specimens. 
Sex and 
Locality. 
When col- 
lected. 
Whence obtained. 
Orig. 
No. 
Collected by— 
Length. 
oTwIn- 
Wing. 
Remarks. 
o O 
Fort Union, Mcx 
1843 
S. F. Baird 
E. Harris...' ... 
do 
July 18, 1843 
do 
Near Fort Union 
Aug. — , 1856 
Sept. 11, 1856 
Sept. 26, 1856 
Sept. 7, 1856 
Aug. 15, 1857 
Aug. 14, 1857 
July 24, 1857 
July 16, 1857 
July 21, 1857 
Lt. Warren . 
g 
9 
Knife river, on Missouri 
Cannon Ball river 
do 
do 
do 
7.00 
7.00 
7.50 
7.50 
12.00 
12.50 
13.25 
13.25 
4.00 
4.25 
4.12 
4.75 
Iris brown 
Camp 4, Mack hills 
Divide forks, Platte 
North Fork, Platte 
do 
Wm. M. Magraw . . 
do 
I-t. Bryan 
148 
155 
147 
do 
Dr. Cooper ..... 
... do 
Iris brown 
Iris brown, bill and 
feet black. 
g 
Q 
S 
Mts near Pole creek .... 
W. S. Wood 
7.50 
7.00 
Lt. G. K. Warren 
12.50 
4.00 
Black hills, N. T 
308 
Capt Pope 
Copper mines, N. M.... 
M;i I'M' Emory 
Mr. Clark 
Feb. 10, 1854 
Feb. 10, 1854 
Lt. Whipple 
88 
170 
56 
Kenn. and Moll.. 
do, 
7.00 
7.00 
11.00 
13.00 
4.00 
5.00 
do 
3 
3 
3 
Lt. R.S.Williamson 
Dec. — , 1854 
18 
San Diego, Cal 
Feb. 7, 1856 
Feb. 5, 1856 
Mar. — , 1855 
Dr. J.F.Hammond 
7.75 
7.50 
7.00 
13.12 
13.37 
12.50 
4.25 
4.25 
4.00 
Iris color of plumage. 
Iris color of plumage. 
Eyes dark chocolate.. 
3 
55 
17416 
Dr. Kennerly .... 
CONTOPUS, Cab an is. 
Conlopus, Cabanis, Journal fur Ornithologie, III, Nov. 1855, 479. (Type J\Iuscicapavire7is, L.) 
Tarsus very short, but stout ; less than the middle toe and scarcely longer than the hinder. Bill quite broad at the base ; 
wider than half the culmen. Tail moderately forked, much shorter than the wings, (rather more than three-fourths.) Wings 
very long and much pointed, reaching beyond the middle of the tail ; the first primary about equal to the fourth. All the 
primaries slender and rather acute, but not attenuated. Head moderately crested. Color, olive above, pale yellowish beneath, 
with a darker patch on the sides of the breast. Under tail coverts streaked. 
This genus is pre-eminently characterized among North American flycatchers hy the very 
short tarsi, and the long and much pointed wings. The species are as follows : 
Length, 7.50 inches ; wing, 4.40. A concealed silky white tuft on each side of the rump. 
No white around the eye or on the wing coverts C. borealis. 
Length, about 6 inches ; wing, 3.50. Outer primary edged with whitish. The olive on 
the sides of breast paler than on the back, less extended, and separated along the median 
line O. virens. 
Length, about 6.25 inches ; wing, 3.65. Outer primary without white edge. Breast olive 
brown, scarcely paler than the back, not divided in the middle line C. richardsonii. 
