806 
U. S. P. R. R. EXP. AND SURVEYS—ZOOLOGY—GENERAL REPORT. 
PELIONETTA PERSPICILLATA, Kaup. 
Surf Duck; Sea Coot. 
Jlnas perspicillata, Linn. Syst. Nat. I, 1766, 201.— Forst. Phil. Trans. LXIf, 1772, 383.— Gmelin, I, 524.— 
Lath. Ind. IJ, 1790, 847.— Wilson, Am. Orn. VIII, 1814, 49 ; pi. lxvii. 
Melanitta perspicilla'a, BoiE,Isis, 1822, 564.—EYTON.Mon. Anat. 1838, 146. 
Jlnas ( Fuligula) perspicillata , Bon. Ohs. Wils. 1825, No. 265. 
Fuligula ( O'ulemia) perspicillata, Bon. Syn 1828, 389.— Nuttall, Man. II, 416. 
Oidemia perspicillata, Fleming, Philos. Zool. 1822?— Swainson, F. Bor. Am. II, 1831,449.— Macgil. Man. 11,181, 
Am. Sp.— Bon. List, 1838. 
“ Pelionetta perspicillata, Kaup,” Reich. leones Av.— Bonap. Comptes Rendus, XLIII, Sept. 1856. 
Fuligula perspicillata, Aud. Orn. Biog. IV, 1838, 161; pi. 317.—In. Syn. 289 .—Ib. Birds Am. VI, 1843, 337 ; 
pi. 402. 
Black Duck, Pennant, II, 556. 
Sp. Ch.— Male. Tail of 14 feathers. Bill but little longer than the head, the feathers extending forward half way from the 
base to the tip, and opposite the posterior border of the nostril; the bill abruptly decurved or gibbous anterior to the end of the 
feathers ; nostrils open, nearly semicircular or stirrup shaped, the straight portion of the outline antero-inferior ; sides of bill 
swollen at the base so as to be further apart above than below. 
Color, entirely black throughout, with a greenish lustre above, duller beneath ; a triangular white patch on the top of head, 
the base extending between the posterior outline of the eye and reaching forward to a point a little beyond the posterior line of 
the bill, the outlines rounded laterally and anteriorly ; the patch is separated from the eye by a narrow superciliary black space. 
There is a second triangular white patch beginning on the nape as a straight line the width of the other patch and running 
backwards for more than two inches. These triangular spaces are thus base to base. 
Female. Bill as long as that of the male, but not swollen at the base, where the sides approach each other above ; the feathers 
of forehead do not extend one third the distance from base to tip of bill; the middle of nostril not quite as far as the middle of 
the bill ; nostrils linear, acutely pointed anteriorly. 
Color brown ; lighter on the neck. Sides and beneath the under surface of the body whitish. An obscure whitish patch at 
the base of the bill, and another on the side of the head behind the eyes. 
Length of male, 19.00; wing, 9.40 ; tarsus, 1.63 ; commissure, 2.37. 
Hab .—On and near seacoast of North America, quite far south in winter. Accidental in Europe. 
List of specimens. 
Catal. 
No. 
Sex & 
age. 
Locality. 
When col¬ 
lected. 
Whence obtained. 
Orig. 
No. 
Collected by— 
Length. 
Stretch 
of wings. 
Wing. 
Remarks. 
913 
3 
S. F. Baird. 
1719 
oQ 
Oct. 12,1844 
17.75 
31.00 
8.80 
8904 
9858 
9858 
Qftnfi 
9882 
S 
66 
20.00 
33.00 
Nov. 29,1857 
78 
18.50 
29.00 
7.50 
21.60 
34.00 
9753 
Oct. 14. 
9551 
3 
Nov. 30,1858 
PELIONETTA TROWBRIDGTI, Baird. 
Long-billed Scoter. 
Sp. Cii.— Male. Bill decidedly longer than the head, the frontal feathers extending over two-fifths its entire length from base 
to tip, and falling considerably behind the posterior border of the nostril. Nostrils open, but rather elongated and running out 
anteriorly in an acute point. Culinen sloping gently from the base and in a straight line with the forehead to the nail. 
