880 
U. S. P. R. R. EXP. AND SURVEYS-ZOOLOGY-GENERAL REPORT. 
the lower part of which, on each side, the bare skin descends for a short distance down the neck, gradually coming to a point, 
thereby giving an arcuate form to the lower margin of the pouch ; bill brownish horn color, the lower mandible marked with 
yellow spots ; iris pale green ; legs and feet black. 
Length, 27, (skin) ; wing, 10 ; tail, 6.50 ; bill, 2.10 ; tarsus, 1.90 ; outer toe and claw, 3.10. 
The young are dark brown, with the neck and breast brownish grey ; the bill yellow, with the ridge dusky. 
Ilab. —Texas, on the Rio Grande ; Cuba. 
Of this species, new to our fauna, there are seven specimens in the collection, three nearly 
adult ; they are all from the Rio Grande. I have two fully adult specimens in my cabinet, one 
from eastern Mexico, the other from Cuba. The hill is of moderate length, rather stout, with 
the culmen smooth, and the sides crossed with ridges, in the same manner as in diloplms and 
floridanus. 
Mr. Gundlach writes that it is abundant on the fresh water lakes and rivers of Cuba, also on 
the sea-shore ; it breeds in August; the nests are placed on trees resembling those of G. 
Jioridamis. 
Mr. Gray appears to have had some doubt of G. mexicanus, Brandt, being a valid species, as 
in his Genera of Birds he places it under diloplms , where he also puts floridanus , Aud. The 
bird above described has strong and decided characters, and agrees very well with Brandt’s 
description of G. mexicanus. 
List of specimens. 
Catal. 
No. 
Sex. 
Locality. 
When col¬ 
lected. 
Whence obtained. 
Orig. 
No. 
Length 
Stretch 
of wing. 
Wing. 
Remarks. 
Cuba_ 
Cab. Geo. N. Lawrence 
_do_ 
1034 
1033 
Gulf of Mexico .. 
3834 
3833 
4191 
9897 
9895 
9899 
Q 
Brazos, Texas_ 
Fort Brown, Texas 
Brownsville, Texas 
Fort Thorn, N. M. 
Feb., 1853 
Capt Van Vliet__ 
9.75 
10. 00 
10. 00 
_do.„„ __ 
26. 50 
26. 00 
36. 00 
36. 00 
_do___ 
Eyes grass green. 
Dr. Henry_ 
_do_ 
9. 75 
10. 50 
Urile, B o n a p . 
GRACULUS PENICILLATUS, Gray. 
Brandt’s Cormorant. 
Carlo penicillatus, Brandt, Bull. Sc. Ac. Imp. Pet. Ill, 1837, 55.— Gamb. Jour. Acad. Nat. Sc. Philad. 2d ser. I, 
1849, 227. 
Phalocrocorax penicillatus, Heerm. Proc. Phil. Acad. VII, 1854, 178. 
Urile penicillatus, Bon. Cons. Av. II, 1855, 175. 
Graculus penicillatus, Gbay, Gen. Ill, 1845, 668 —Bon. Comptes Rendus, XLII, 1856, 766 
Phalacrocorax townsendi, Aud. Orn. Biog. V, 1839,149.— Ib. Syn. 1839, 304.— Ib. Birds Am. VI, 1843, 438; pi. ccccxviii. 
g p . Ch.—D ark green ; long hair-like feathers of the neck and back white ; gular sac blue, below which is a gorgelet of dark 
fawn color. 
Jldult. Head and neck of a fine bluish black color ; back, rump, and under plumage of a very deep rich green, in certain 
positions inclining to bluish green ; imbricate feathers of the back and wings of a dull bronzed brownish green, very narrowly 
margined with black ; primaries and inner webs of the other quills blackish brown, the outer webs brownish green ; tail and 
shafts black ; sides of the neck and the upper part of the back on each side have numerous white, narrow, stiff, hair-like 
feathers, which extend beyond tbe other feathers from 2 to 2| inches ; gular sac blue, encircling the base of which is a broad 
band of dark fawn color, the feathers of this gorgelet extend upward from the lower margin of the gular sac for l of an inch 
and come to a point; bill brownish, lighter at base of lower mandible ; legs and feet black. 
Length, about 28 inches ; wing, 10> ; tail, 5.25 ; bill, 2.90 ; tarsus, 2.40 ; outer toe and claw, 4 ; inner, 2.15 ; hind, 1.50. 
These are the measurements of No. 4501. 
Ilab. —West coast ofNorth America. 
