Genus Cygnopsis , Brandt (1836) 



Bill longer than head, entirely black, depressed, short at the point, and somewhat 

 swollen at the forehead ; base of upper mandible projecting into feathering of forehead in 

 an arch. 1 Nails of both mandibles very large, with their outer edges (owing to the number 

 of parallel transverse furrows) serrated like the milling on a coin to a much greater extent 

 than in other geese. Tarsus considerably shorter than median digit without claw (usually 

 by more than half-inch). Tail-feathers 18. Legs and feet orange. 



THE SWAN-GOOSE 



Cygnopsis cygnoides, Linn. 



Plate 21 



English — Chinese Goose ; Swan Goose. 



Russian — Sukhonos (Transbaikalia) ; kaury gus (ditto, with Daurian frontier) ; gus-lobed 



(Przewalski) ; kitaisky gas (mainly domesticated). 

 Mongol— Khongor galun {teste Pallas, meaning swan-goose ; but teste Radde, who writes 



Khongor-golun, it means yellow -brown goose. The domesticated birds are 



called by the Mongols mangut-galn, i.e. Devil's goose, or ghost goose, teste 



Pallas). 

 Gilyak — Yt and Nyoni (Schrenck). 

 Mangun and Gold — Nyunya (Schrenck). 

 Orochon — Nyunyaki (Schrenck). 

 German — Schwanengans ; Trompetergans ; Hockergans ; Russische Gans ; Sibirische Gans ; 



Chinesische Gans ; Japanische Gans ; Guinea Gans (evidently the majority of these 



names refer to domesticated birds). 

 French — Oie de Gninee. 



Anas cygnoides, Linn., Fauna Suec. p. 108 (1746) ; id., Syst. Nat., i. p. 194 (1766). 



Anser muscoviticus, Brisson, Orn., iv. p. 278 (1760). 



Anser guineensis, Brisson, I.e., p. 280. 



Anser cygnoides, Pallas, "Voyages," iv. p. 144, App., p. 672 ; id., Zoogr. Ross.-Asiat., ii. p. 218, pi. lxiv. (181 1) ; 



Eyton, Mon. Anat, pi. 5 (skeleton), 1838 ; Temminck and Schlegel, Faun. Jap., Aves, p. 125 (1850); 



Maak, Amur, App. p. 143 (1859) ; Radde, Beitr. Kennt. Russ. R., xxxiii. p. 210 (186 1) ; Przewalski, Put. 



Uss. Kr., 1 870, pp. 1 82, 1 83, etc. ; id., Mong. i Str. Tang., ii. p. 1 5 1 (1 876); Sclater, Proc. Zool. Soc. London, 



1 In all the other Palasarctic geese we see the opposite condition ; the feathering of the forehead projects in an arch or even an 

 angle into the base of the upper mandible. 



176 



