232 AVES : ANSERES, — XXXV. 
and black, the dark waved lines unbroken; breast, rump, etc., 
black ; belly white ; speculum bluish gray, tipped with white; 9? 
duller; bill and feet dull bluish. L. 20. W.10. T.3. B. 24. 
N. Am., abundant. 
6. Bill as long as middle toe without claw, its tip flattened, the nail little 
hooked. (Aristonetta Baird.) 
700. A. vallisneria (Wilson). Canvas-Back Duck. Head 
and neck dark reddish brown; black wavy lines on back broken, 
the whitish predominating; bill dusky. L. 23. W. 9. T. 3. 
B. 22. N. Am.; especially coastwise in winter; a bird highly 
valued by epicures, but ordinarily not superior to any of the river- 
ducks. (Vallisneria spiralis, the ‘“* Water Celery,” on which the 
bird feeds.) 
aa. Bill wider toward end than at base; ¢ with head and neck black. (Fu- 
ligula Stephens.) 
c. Speculum white, tipped with black. 
701. A. marila (L.). Bia Scaur Duck. Biur Bint. Rarr 
Duck. Friockrne Fown. Head, neck, and breast black; no 
ring about neck; back and sides whitish, the back finely waved 
with black; ?@ with face white; the head and neck snuffy brown. 
L. 20. W. 9. Northern regions, the American bird is var. 
nearctica Stejneger, its 6 inner quills without white on inner web. 
(uapidn, charcoal.) 
702. A. affinis (Eyton). Lesser Scaup Duck. Similar, but 
smaller; the sides vermiculate with blackish. L.16. W.8. T. 
24. N.Am. (Lat., related.) 
cc. Speculum bluish gray. 
703. A. collaris (Donovan). RrinG-NECKED Duck. ¢ with an 
orange brown collar about neck; blackish above; crissum black ; 
lower parts white; wings brown; 9 chiefly brown, without collar. 
L.18. W.8t. T. 28. N. Am. (Lat., collared.) 
356. GLAUCIONETTA Stejneger. (yAavxtov, an old name ; 
yntra, duck.) 
704. G. clangula (L.). GOLDEN-EYE. GaRROT. ( head puffy, 
glossy green with a round white spot before eye not touching bill; 
upper parts black; white continuous on outer surface of wing; 9 
head duller, snuff-colored and scarcely puffy, the body brownish. 
L.16to19. W.8. T. 33. N.Am., common; “meat bad, rank 
and fishy.” (Hu.) The Amer. bird is var. americana Bonap. 
705. G.islandica (Gmelin). BArrow’s GOLDEN-EYE. Similar; 
head almost crested in ¢ ; gloss of head purplish ; a roundish white 
space before eye touching base of bill; white of wing divided by a 
dark line; 9 head dark brown. L.22. W.10. T. 33%. N.U.S. 
and N.; rare. (Eu.) (From Iceland.) 
