16 ZOOLOGY. 



and sides, with the scapulars, paie gray, very finely undulated with dusky ; the outer scapulars with a brownish tinge. Fore 

 part of back reddish brown ; posterior more olivaceous. CrisBum and upper tail coverts black, the latter with a blue gloss. 

 Tail externally white; wing coverts brownish gray, the greater coverts tipped first with white, and then more narrowly with 

 black. Speculum purplish violet, terminated with black ; a recurved tuft of feathers on the rump. 



Female with the wing exactly as on the male. The under parts plain whitish ochrey, each feather obscurely blotched with 

 dusky. Head and neck similar, spotted and streaked with dusky ; the chin and throat above unspotted. Upper parts dark 

 brown, the feathers broadly edged and banded with reddish brown parallel with the circumference. 



Length of male, 23; wing, 11 ; tarsus, 1,7U; commissure of bill, 2, 5U. 



9699. Salt Lake City. 



AYTHYA AMERICANA, Bon. (p. 793.)— Red-head. 



Sp. Ch. — Bill as long as the head, broad, blue, the end black; the region anterior to the nostrils dusky. Head, and neck 

 for more than half its length, brownish red, glossed above and behind with violaceous red. Rest of neck and body anterior to 

 the shoulders, lower part of back and tail coverts black. Beneath white, sprinkled with gray and black anterior to the crissum ; 

 the sides, interscapulars, and scapulars finely lined with undulating black and white in nearly equal proportions, imparting a 

 general gray lint. Wing coverts bluish gray, finely sprinkled with whitish. The speculum, consisting of the ends of the 

 secondaries, hoary grayish blue, lightest externally, and the innermost narrowly edged externally with black. Basal portion of 

 inner primaries somewhat similar to the speculum. Tail of fourteen feathers. 



Female with the head, neck, and fore part of body brownish; the region round the base of the bill whitish. Length of male, 

 20. 50 ; wing, 9. 50 ; tarsus, 1. 60; commissure, 2. 30. 



9181. Salt Lake City. 9786. Uncompagre river, Utah. (26.) 



NETTION CAROLINENSIS, Baird, (p. ^Y.)— Green-winged TeaL 



Anas carolijiensis, Gmelin, Syst. Nat. I, 1788, 533. 



Sp. Ch. — Head and neck all round chestnut: chin Mack; forehead dusky. Region round the eye, continued along the side 

 of the head as a broad stripe, rich green, passing into a bluish black patch across the nape. Under parte white, the feathers of 

 the jugulum with rounded black spots. Lower portion of neck all round, sides of breast and body, long feathers of flanks and 

 scapulars beautifully and finely banded closely with black and grayish white. Outer webs of some scapulars, and of outer 

 secondaries black, the latter tipped with white ; speculum broad and rich green ; wing coverts plain grayish brown, the greater 

 coverts tipped with buff. A white crescent in front of the bend of the wing; crissum black, with a triangular patch of buffy 

 white on each side. Lower portion of the green stripe on each side of the head blackish, with a dull edge of whitish below. 



Female with the wings as in the male. The un 'er parts white, with hidden spots on the jugulum and lower neck ; above dark 

 brown, the feathers edged with gray. 



Length, M inches; wing, 7. 40; tarsus, 1.14; commissure, 1.68. 



9721. Salt Lake City. 



BUCEPHALA AMERICANA, Baird, (p. 796.)— Golden Eye ; Whistle Wing. 



Clangula americana, Bonap. Comp List, 1833.— Evton, Mon. Anat. 1838, 167. 



Sp. Ch.— Bill black. Head and upper part of neck glossy green ; the under surface opaque velvety purplish black. An 

 elliptical patch along the base of upper mandible anterior to the eye, lower part of neck, under parts generally, and sides, 

 middle and greater wing coverts, the innermost secondaries (and tortials, except the innermost three or four) white. The 

 white on the wing is in a continuous patch, although there is a concealed black bar on the bases of the greater coverts The 

 inner scapulars are white, margined externally with black ; posteriorly, however, they are black, streaked centrally with white. 

 The inner scapulars and tertials, and the whole back, rump, and lesser wing coverts, are black; the primaries and tail black, 

 with a hoary gloss. The under side of quills and lower greater coverts are plumbeous gray ; the rest of the under wing and the 

 axillars are snoty brown. The long white feathers of the flanks are edged superiorly with black. 



Female with the head and neck above snuff brown, without white patch. White of wing less extended ; the middle coverts 

 only touched with white. Ihere is a tendency to a black bar across the tips of the greater coverts. The white of the wing 

 sometimes well defined. 



Length, 18.7.'); wing, 8. 50; tarsus, L.'iO: commissure, 2. 



9798. Great Salt Lake City. 



