234 AVES : ANSEKES. — XXXV. 



known by the bill. L. 22. W. 11. T. 4. Northern regions; 

 S. to N. J. (A") (L;it., conspicuous.) 



362. OIDEMIA Fleming. (0187/10, swelling.) 



a. Bill ill (f .siartilv ciKTcpjuiu'd upon by frontal feathers; nostrils median; 

 no white on wings. (O'ulemia.) 



712. O. americana Swainson. American Black Scoter. 

 (J entirely black; 9 sooty brown, ])aler below and on throat. 

 L. 17 to 20. AV. 10. T. 4. N. Am., coastwise; S. to N. J. 

 aa. Bill in cf broadly encroached upon by frontal feathers; nostrils beyond 

 middle of bill; a large white wing [>atcli. (Mdanitta Boie.) 



7i;5. O. deglaudi Bonaparte. White Wixcjeu Scoter. St'RF 



Dick. ^ bhuk ; white spot under eye and white on wings ; bill 



orange-tipped; feet orange; 9 sooty brown. L. 21. W. 11. N. 



Am., S. to Md. 



aaa. Bill in cf mirrowly encroached ujion bj- frontal feathers; no white on 

 wings; nostrils beyond middle of bill. (I'tUunctta Kaup.) 



714. O. perspicillata (L.). Suuf Duck. Sea Coot. (J black, 

 with white spot on forehead and nape ; 9 sooty brown ; white patch 

 on lores and cheeks ; size of 0. americana. N. Am., coastwise. 

 (Lat., conspicuous.) 



363. ERISMATURA Bonaparte (JptKrua, prop ; ovpa, tail.) 

 7irj, E jamaicensia Gmelin. RroDY Ditk. Chiefly brownish 

 or tawny, glossy chestnut in full plumage; considerably waved and 

 dotted, lower parts mottled silver-white ; crissura white ; 9 brown, 

 mottled with dusky. L. 1 7. W . 6. T. 3^. N. Am., frecjuent ; an 

 C.Xpert diviT. 



364. NOMONYX Bidgway. (i/il/ioy. regularity ; oia)|, nail.) 

 71(!. N. dominicus (Ij-). Redder than the last; forehead and 



chin black. L. 13^. W. 6^. Trop. Ainer., straying N. to Wis., 



etc. (From San Domingo.) 



365. CHEN Boic. (^i?*'. goose.) 



717. C. ccerulescens (L.). Bi.ie (ionsK. Grayish brown, the 

 runif) and wing coverts gray ; size and form of ne.\t. N. Am., rare. 

 (Lat., bluish.) 



718. C. hyperborea (Pallas.) Snow Goose, .\dult pure 

 wliite, washed with red<lish on head ; tlie primaries black ; young 

 bluish ; feet reildish, the claws dark ; bill red ; laiiiella» very promi- 

 nent. B. :{0 to .S8. W. 17. T. 6J^. B. 2^. X. Am., chiefly W. 

 The form ¥,. of the Rocky Mts. is var. nivalis Forster ; larger than 

 the Western bird. (Lu.. fur-northern.) 



366. ANSER Bri.s.son. (Bat., gixjse.) 



719. A. alblfrons (Jnielin. White-fronted Goose. Specki.e- 

 Bii.i.. (iravish-lirown, mottled, forehead and tail covirts white; 



