SHOVELLER DUCK. 245 
light reddish-brown, which is the prevailing colour over the lower part 
of the neck, a portion of the breast and the sides, of which however 
the feathers are margined with dusky ; the middle cf the breast white. 
Smaller wing-coverts dull brownish-grey ; alula and primaries as in the 
male ; inner secondaries brownish-black ; the speculum as in the male, 
but paler, and changing to blue; the secondary coverts tipped with 
white ; tail nearly as in the male. 
Length to end of tail 17 inches; to end of claws 20; bill along the 
ridge 2; extent of wings 292. Weight 1 Ib. 1 oz. 
The bill of a male measures 2 inches and 8 twelfths along the ridge, 
the frontal angles 4 twelfths more; the breadth of the upper mandible 
at the base is 81 twelfths, near the end 1 inch and 3 twelfths. The 
roof of the mouth is broadly and deeply concave, with a prominent 
median ridge, which becomes papillate towards the base; the edges of 
the mandible soft, direct, inflected towards the end; lamella project- 
ing beyond the margins and tapering to a pomt. On each side of the 
lower mandible are about 220 lamelle, and about 180 on the upper. 
The tongue is 23 inches long, deeply emarginate at the base, with nu- 
merous papille, for half an inch narrow and compressed, then for an 
inch expanded, with a thin longitudinal flap above on each side divid- 
ed into lamelle and minute bristles, at its anterior part having a breadth 
of 1 inch and terminating abruptly, but with a median thin semi- 
circular tip, which is 3 twelfths long. 
The cesophagus is 8 inches and 10 twelfths long, 43 twelfths in dia- 
meter, its walls thick. The proventriculus is oblong, 1 inch in length ; 
its glandules of moderate size. ‘The stomach is a strong gizzard of 
moderate size ; the lateral muscles and their tendons large as in all 
other ducks. The intestine is very long, measuring 8 feet, and very 
narrow, its diameter being from 2 twelfths to 13 twelfth, for half its 
length, after which it enlarges to 3} twelfths at the distance of about 
2 feet from ‘the commencement of the rectum, then gradually dimi- 
nishes to 2 twelfths. The rectum is 3 inches 2 twelfths long, the 
cceca 4 inches, their diameter for 14 inch 1} twelfth, afterwards 34 
twelfths. 
_The trachea is 6 inches 9 twelfths long, very little flattened, its 
diameter at the upper part 23 twelfths, gradually enlarging to 4 twelfths. 
On the left side of the inferior larynx there is a rounded expansion of 
