BIRDS — FULIGULINAE — HAKELDA. 



7yy 



HISTEIONICUS TOEQUATUS, Bonap. 



Harlequin Duck. 



^nas histHonica, Likn. Syst. Nat. ed. 10, 1, 1758, 127; ed. 12th, I, 1766, 204.— Porster, Phil. Trans. LXII, 

 1772, 383.— Gmelin, I, 534.— Lath. Ind. Orn. II, 1790, 849.— BrInnich, Orn. Boreahs, 1764, 

 84.— WiLsohf, Am. Orn. VIII, 1814, 139 ; pi. Ixxii. 



Jlnas (FuUgula) liistri'onica, Bon. Obs. Wils. 1825, No. 277. 



Fnligula {Clangula} histHonica, Eon. Sjn. 1828, 394. — Ndttall, Man. II, 448. 



FuUgula /tisWomco,' Add. Orn. Biog. Ill, 1835, 612 : V, 1839, 617 -, pi. 297.— Ib. Syn. 1839, 294.— Ib. Birds Amer. 

 VI, 1843,374; pi. 409. 



*' Cosmonetta kistrionica, Kaup." 



Clangula histHonica, Swainson, F. Bor. Am. II, 1831, 489.— Etton, Mod. Anat 1838, 163. 



Harelda histHonica, Keys. & Blas. Wirb. Europ. 1840.— Bon. 2d list Eur. Birds, 1842. 



Phijlaconetta histHonica, Brandt, Mem. Acad. St. Pet. Sc. Nat. VI, 1849, 9. 



?^nas minuta, Linn. I, 1766, 204. Female. 



HistHonicus torquatus, Bonap. Comptea Rendus, XLIII, Sept. 1856. 



Harlequin Duck, Pennant. 



Sp. Ch — Malt. Head and neck all round dark bine. Jugulum, sides of breast, and upper parts, lighter blue, becoming 

 bluish black again on the tail coverts. The blue of breast passes insensibly into dark bluish brown behind. A broad stripe 

 along the top of head from the bill to the nape, and the tail feathers, black. A white patch along the entire side of the base 

 of bill anterior to tlie eye, and passing upwards and backwards so as to border the black of the crown, but replaced from above 

 the eye to the nape by chestnut. A round spot on the side of the occiput, an elongated one on the side of the neck, a collar 

 round the lower part of the neck, interrupted before and behind, and margined behind by dark blue, a transversely elongated 

 patch on each side the breast, and similarly margined, a round spot on the middle wing coverts, a transverse patch on the end 

 of the greater coverts, the scapulars in part, a broad streak on the outer web of tertials, and a spot on each side the rest of the 

 tail, white ; sides of body behind chestnut brown. Secondaries with a metallic speculum of purplish or violet blue. Inside 

 of wing, and axillars, dark brown. 



Female with the head and body above, dark brown ; the chin more plumbeous ; the lower part of neck, breast, and under 

 parts generally, except the central region, (which is white,) duller and lighter brown ; a whitish patch in front of the eye, and 

 a rounded spot just behind the ear. 



Length, 17.50 ; wing, 7.70 ; tarsus, 1.48 ; commissure, 1.54. 



Hub. — Northern seacoast of northern hemisphere. 



Lid of specimens. 



