ANATID^. — CXXXVI. 231 



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

 (£u.) (Lat., obstreperous.) 



351 e. MARISCA Stephens. 

 dd. Lamellie 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). AnEiiicAN 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 ; 

 ? 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. 2|. N. Am., common. (£«.) (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. (jB«.) 



354. AIX Boie. (at^, a water-bird ; a.t(T<Ta), 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-J. T. 5. U. S. frequent ; nesting 

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



355. AYTHYA Boie. {aWma, a sea-bird.) 



14. 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 



