165 



Anas albeola Linn. Syst. 1. 199. 



Gmel. Syst. 1. 517. 



Lath, Ind. Orn. 2. 866. 

 Anas Sucephala Linn. Syst. 1 . 200. 



Gmel. Syst. 1.521. 



Anas hyberna Briss. Orn. 6. 349. 



Querquedula Ludoviriana Briss. Orn. 6. 349. 



Anas rustica Linn. Syst. 1 . 201 . 



Gmel. Syst. 1. 524. 



Sarcelle de la Caroline Buff. Ois. 9. 286. 



Sarcelle blanche et noir on la religeuse B'ff- Ois. 9. 284. 



Petit canard a grosse fete Biff. Ois. 9. 249. 



Buffle-headed Duck Catesb. Carol. I. pi. 95. 



Penn. Arct. Zool. 2. 489. 



Lath. Gen. Syn. 6. 532. 

 Little brown Duck Catesb. Carol. I. pi. 98. 



Lath. Gen. Syn. 6. 534. 

 Le canard Lhoora Veill. En. Method. Orn. 1. 134. 



An abundant species on the fresh -water lakes of arctic America, where nidification is perfected, 

 their nests are made in hollow trees contiguous to water. During autumn and winter they are 

 found over a considerable portion of North America. 



CLANGULA BARROVII. 



Clang. Mas. — Capite colloque superiore atro ; genis lunata fascia ornatis. 

 Clang. Fern. — Vulgari similis, sed singulo albo collo. 



BARROW'S DUCK. 



Male clangida, with the head and upper part of the neck black ; the cheeks ornamented with a 

 lunate fascia. 



Fern, similar to the female of Clangida vulgaris, but with a white collar. 



IN. 



Length 22±. Middle toe 2± 



Bill 1 7-i2dis Outer toe 1 5-i2ths 



Tarsi 1 7-l2tha 



.Male : head and upper part of the neck black, with purple and metallic green inflections ; a 

 crescent-shaped patch from the gape to the crown ; below, lesser wing coverts, tips of the scapulars. 

 and greater coverts, together with the outer secondaries, white ; lateral tail coverts brown ; bill lead 

 coloured ; legs and feet orange, the webs black. 



