ANATINE. 405 
Genus, Chaulelasmus, G'ray. 
Bill equal to the head, depressed throughout, of nearly uniform 
width, but slightly narrowing towards the tip, which has a small 
nail; the lamella long, projecting ; wings lengthened ; tail rather 
long; the central feathers slightly lengthened. 
Chaulelasmus streperus, Linn. 
961.—Jerdon’s Birds of India, Vol. II, p. 802; Butler, Guzerat ; 
Stray Feathers, Vol. IV, p. 27; Deccan, Stray Feathers, Vol. 
IX, p. 438; Murray’s Vertebrate Zoology of Sind, p. 293; 
Game Birds of India, Vol. III, p. 181; Swinhoe and Barnes, 
Central India; Ibis, Vol. III, p. 137. 
THE GADWALL. 
$. Length, 19:4 to 21:5; expanse, 33 to 36°75 ; wing, 10°75 to 
116; tail, 3°9 to 43; tarsus, 1-4 to 15; bill from gape, 2 to 2°22 ; 
weight, 1 ,", to 2,2, lbs. 
9. Length, 18 to 20:1; expanse, 30 to 33°75 ; wing, 9 to 102; 
tail, 3°7 to 4°5 ; tarsus, 1°37 to 1:43; bill from gape, 194 to 2-1; 
weight, 1,!; to 142 lbs. 
Bill brownish-black, tinged reddish beneath ; irides dark-brown ; 
legs yellowish brown to dull orange. 
Male, head and neck greyish-white, speckled with brown ; back 
dark clove-brown, with white crescentic lines; scapulars un- 
dulated with white and blackish-brown ; rump and upper tail- 
coverts glossed with purplish-blue ; tail cinereous-brown, edged 
and tipped with white; lesser wing-coverts grey, mixed with 
white; median wing-coverts rich brownish-chesnut; greater- 
coverts glossy black, speculum white above, black beneath ; quills 
brown; tertials brownish-grey; lower part of the neck and 
breast dark brown with white crescentic lines ; abdomen white, 
minutely speckled with greyish-brown, and the flanks with brown 
and white undulations ; lower tail-coverts glossy-black. 
The female has the head black mixed with whitish, a pale 
superciliary streak, the upper parts deep brown, the feathers 
edged with buff; the lesser wing-coverts hair-brown, margined 
paler; the speculum as in the male; the tail marbled with 
brown and whitish ; the chin and throat whitish ; breast pale buff, 
with brown spots, and the rest of the lower parts white; the bill 
paler and the margins reddish. 
The female is very like that of the Mallard, but is smaller, 
and the speculum is white, opposed to the metallic purplish one 
of the Mallard. 
The Gadwall is one of the commonest of the ducks, and occurs 
during the cold season throughout the district. 
It is fairly good eating but not equal to either the Mallard or 
the Spot-bill. 
Chaulelasmus angustirostris, Men. 
961b¢s.—Butler, Guzerat ; Stray Feathers, Vol. IV, p. 30; Murray’s 
