ANATIDA. —— CXXXVI. : 231 
known by the wings. L.22. W.11. T. 43. N. Am,, not rare. 
(Eu.) (Lat., obstreperous.) 
35le. MARECA Stephens. 
dd. Lamellz coarser, less than 15 visible externally; bill shorter than head. 
694. M. penelope (L.). European Wipceon. Head and 
neck cinnamon; in ¢ top of head brownish white; sides of head 
with slight traces of green, Europe; rare in America. (Eu.) 
695. M. americana (Gmelin). AMERICAN WIDGEON. BaLp- 
PATE. Head and neck grayish in @, speckled with dusky; top of 
head white; sides of head with bright green patch; speculum 
glossy-green, preceded by black, white, and gray on wing-coverts; 
Q duller. L.20. W.11. 7.4}. N.Am., abundant. (Zu.) 
352. SPATULA Boie. (Lat., spoon.) 
696. S. clypeata (L.). SHovELLER. Spoon-pirt Duck. # 
head and neck green; breast white; belly chestnut; wing coverts 
blue; speculum green, bordered by black and white; rump and tail 
coverts black; 9 streaky brownish, known by the bill and wings. 
L.20. W.94. B. 23. N.Am.,common. (E£u.) (Lat., clypeum, 
shield.) 
353. DAFILA Stephens. (A coined word.) 
697. D. acuta (L.). Pin-ram. Spric-rart. ¢ head dark 
brown with purplish gloss; side of neck with a long white stripe; 
back gray, finely waved with darker; lower parts white; crissum 
black; sides finely waved; speculum violet, with black, white, and 
buffy ; tail cuneate when developed, central feathers black and 
much projecting; 9 speckled and streaked; tail much shorter ; 
bill dusky; feet grayish blue. L. 20 to 30. W.11. T.9 or less. 
N. Am. common, a slender, trim-built duck. (Eu.) 
354. AIX Boie. (dif, a water-bird; dicca, to spring.) 
698. A. sponsa (L.). Woop Ducx. Summer Duck. Crested; 
& head iridescent green and purple, with white stripes and a 
forked white throat patch; back varied, black, green, etc.; breast 
rich chestnut; sides buffy, very finely waved with dark; speculum 
green; tips of primaries frosted; Q duller, head mostly gray; 
varied with white. L.20. W. 94. T.5. U.S. frequent; nesting 
in trees, the most elegant of all ducks. (Lat., bride.) 
355. AYTHYA Boie. (aiéva, a sea-bird.) 
a. Bill not wider toward its end than at base ; d' with head and neck reddish. 
6. Bill much shorter than middle toe without claw, the nail hooked. 
(Aythya.) 
699. A. americana (Eyton). Rep Heap. Pocuarp. ¢ 
head and neck chestnut with red reflections; back mixed silvery 
