168 



the black ring round tlic neck ornamenting the male. The in- 

 testinal canal twice the proportional length of that of the Plec- 

 tropterus. 



Genus Anas, Auct, 



216. Anas strepera, Linn., 1.200. Chipeau, BufF., PI. Enl. 958. 



Chestnut lesser wing-covert Duck. 

 Males identical with specimens in the British Museum from Kent. 

 No females for comparison. Length, inclusive of tail, male 

 24- to 25 inches, female 22 inches ; tail 4 inches. Numerous 

 in Dukhun. Gregarious. A tape-worm was found protruding 

 through the coat of the intestine in one bird, without affecting 

 its health or flesh. 



Genus Rhi/yichaspis, Leach, MSS, 



217. Rhynchaspis virescens, Leach, MSS. Anas chjpeaia, Linn., 1. 



200. SoMc/je^BufF., Ois.9. 191. PI. Enl. 971, 972. Black- 

 headed Shovel er. 

 Identical with British specimens of the common Shoveler ; but 

 differing from the description of that bird in Shaw. Irides 

 yellowish brown. Length, inclusive of tail, 20 to 21 inches; 

 tail 4< inches. Grass seeds, vegetable matters, pulse-like seeds, 

 and gravel found in the stomacii. Gregarious. The intestinal 

 canal is more than seven times as long as the body, neck, and 

 bill included ; and in this particular is not approached within 

 nearly two-sevenths by any other bird of the order Nataiores. 



Genus Mareca, Steph. Wigenn. 



218. Mareca pcecilorhyncha , Steph , 12. 134. Anas pcecilorhyncha, 



Gmel., 1 . 535. Spotted-billed Duck, Lath. 

 Irides red fuscous brown. Length, inclusive of tail, 22 to 25 

 inches; tail 4 to 4^ inches. Sexes alike in plumage. Grass 

 seeds, vegetable matters, and small stones found in the gizzard. 

 Colonel Sykes's birds identical with a specimen in the British 

 Museum, from the Himalayan mountains. The spot at the 

 end of the bill invariably yellow, but in books it is stated to be 

 white. The digastric muscle thicker than the diameter of the 

 cavity of the gizzard. Colonel Sykes does not consider this 

 species a true Mareca. 



219. Mareca Jistularis, Steph., 12. 131. Ayias Penelope, Linn., ]. 



202. Canard Siffleur, Buff:, Ois. 9, 169. PI. Enl, 825. 

 Wiveou. 

 Irides red fuscous brown. Length, inclusive of tail, 19 to 20 

 inches (males), 18^ to 19 inches (females); tail 3^ to .3f inches. 

 Gregarious. Absolutely identical with specimens from Devon- 

 shire. Contents of the gizzard as in the preceding species, 



220. Mareca Awsuree. Mar .7iigrescciiti-brunnea ; plumarum sca- 



pularinm dorsique apicibus Jlavescenti-brunneis ; tegminihus 

 alarum miiioribus caudcEcpie superioribus saturate castaneis ; 

 vertice linenque cervicali Jiiscis ; capite, collo, pectoreque pal- 

 lide Jlavescenti-brunneis, ventre uropygioque suturatioribus 



