ANATID^. — CXXXVI. 231 



known by the wings. L. 22. W. 11. T. 4j. N. Am., not rare. 

 (£m.) (Lat., obstreperous.) 



351 e. MARBCA Stephens. 

 dd. LamellsE coarser, less than 15 visible externally; bill shorter than head. 



694. M. penelope (L,). European Widgeon. 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. Bald- 

 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 ; 

 9 duller. L. 20. W. 11. T. 4^. N. Am., abundant. {Eu.) 



352. SPATULA Boie. (Lat., spoon.) 



696. S. clypeata (L.). Shoveller. Spoon-bill 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. 9^. B. 2f . N. Am., common. (Eu.) (Lat., clypeum, 

 shield.) 



353. DAFILA Stephens. (A coined word.) 



697. D. acuta (L.). Pin-tail. Sprig-tail. ^ 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. (En,.) 



354. AIX Boie. (at^, a water-bird ; atcrira, to spring.) 



698. A. sponsa (L.). Wood DuCK. 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; 9 duller, head mostly gray; 

 varied with white. L. 20. W. 9|. T. 6. U. S. frequent ; nesting 

 in trees, the most elegant of all ducks. (Lat., bride.) 



355, AYTHYA Boie. (aWvia, a sea-bird.) 

 o. Bill not wider toward its end than at base ; <} with head and neck reddish. 

 b. Bill much shorter than middle toe without claw, the nail hooked. 

 (Aythya.) 



699. A. americana (Eyton). Red Head. Pochard. ^ 

 head and neck chestnut with red reflections ; back mixed silvery 



