ANATIDJi, DUCKS. GEN. 260-1. 



289 



cinereus of South America, both related to oar gen. 2G4 ; there are but very few 

 others. The genus Erismatura is the type of a small remarkable group, as noticed 

 beyond, sometimes considered as a sabfamilj^. Biziura lohata of Australia, 

 with a fleshy appendage under the bill, the African T/ialassornis leuconota, the 

 Nesonetta aucklandica, and several species of Erismatura, compose the subgroup. 



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260-1. Genus PULIGULA Stephens. 



* ^ with the head, neck, and body anteriorly, black, the former glossy ; lower 

 back, rump, tail and its coverts, blackish ; below, white, with fine black waving on 

 the sides and lower belly ; 9 with the head and anterior parts brown, witli or 

 ■without pure white around the bill, and other black parts of the $ rather brown ; 

 (J 9 bill black and blue, or dusky ; feet livid. (Falix.) 



Greater Scanp Duck. Big Black-head. Blue-bill. Raft I)uc7c. Flock- 

 ing Foivl. Shuffler. No ring round neck; siDeculura white; Ijack and sides 

 whitish, finely waved in zigzag with black ; gloss of head green ; bill dull 

 blue with blade nail; legs plumbeous; 2 with the face pure white, the 

 black-and-white vermiculation less distinct. About 20 long ; wing 9. N. 

 Am. WiLS., viii, 84, pi. 69, f. 3; Nott., ii, 437 (includes next species) ; 

 AuD., vii, 355, pi. 498 (not of vi, 316) ; Bu., 791 marila. 



fLesser Scaup Duck. Dittle Black-head (with other names of the fore- 

 going). Extremelj' similar; smaller, about 16; wing 8; gloss of head 

 chiefly purple ; flanks and scapulars less closely waved with black ? It is 

 very difEcult to define this bird specificall}', and it may be simply a small 

 southern form ; but it appears to preserve its characters, although constantly 

 associated with the last. F. marila AuD., vi, 316, pi. 397; F. minor 

 GiRAUD, Birds of Long Island, 323; F. afflnis Bd., 791. . . affinis. 



Ring-necked Duck. An orange-brown ring round the neck ; speculum 

 gray ; back nearly uniform blackish ; bill black, pale at base and near tip ; 

 5 with head and neck brown, and no collar, but loral space and chiu whitish, 

 as is a ring round e^-e ; bill plain dusky. In size between the foregoing. 

 N. Am. WiLS., viii, 60, pi. 67, f. 5 ; Nutt., ii, 439 ; Aud., vi, 320, pi. 

 398 ; Bd. 792. . . collaris. 



**(J with the head and neck 

 chestnut, pure or obscured, in the 

 9 plain brown ; body anteriorly, 

 rump and tail coverts, black, in the 

 9 dark brown ; back, scapulars and 

 sides plumbeous-white, finely waA'cd 

 with black, less distinct in the ? ; 

 speculum bluish-ash. Length about c 

 20 ; wing 9-10 ; tarsus l|-lf . - 

 {Aytliya.) 



Red-head. Fo chard. Bill 

 dull blue with a black belt at 

 the end, broad and depressed, shorter than head (2 or less), the nostrils 

 within its basal half; color of head rich pure chestnut, with bronzy or red 



Fig. 190. CMQv;is-l)uck. 



KEY TO N. A. BniDS. 



37 



