672 CYGNUS BEWICKII. 



sinuate on the inner web ; the tail short, much rounded, of 

 twenty feathers. 



The bill is black, with the exception of a bright yellow 

 triangular space on each side at the base, not extending so 

 far forward as the nostrils ; the bare skin at its base orange- 

 yellow. The iris brown. The feet black. The plumage 

 pure white ; the head and neck tinged with reddish-yellow. 



Length to end of tail 45 inches ; extent of wings 74 ; 

 wing from flexure 20^ ; tail 5 J ; bill along the ridge 3^ ; 

 from the joint 3 ; from the eye to the tip 5^ ; its height at 

 the base 1^- ; its breadth near the end l-^ ; bare part of 

 tibia 1-^ ; tarsus 1^ ; hind toe T 7 T , its claw -fe ', second toe 

 3^-, its claw -f^ ', third toe 4 1 , its claw \% ; fourth toe 4-^, 

 its claw -j 2 ^. 



Female. — The female is similar to the male, but smaller. 

 The digestive organs of an individual examined in Edinburgh, 

 in January, 1836, were as follows : — The tongue two inches and 

 a half in length, three-fourths in breadth. The oesophagus 

 twenty-five inches long, for fifteen inches and a half averag- 

 ing half an inch in width, but in two places dilated to ten- 

 twelfths, and at the lower part of the neck forming a kind of 

 diminutive crop ; within the thorax contracted to three- 

 twelfths ; the proventriculus two inches long, and one inch 

 in its greatest breadth. The gizzard three inches and a half 

 in breadth, two and a quarter in length, sub-elliptical, convex 

 on the sides, with the edges rather thin. Immediately after 

 the pylorus the intestine enlarges to half an inch, soon 

 after to three-fourths, and so continues to the entrance of the 

 biliary ducts, at eleven inches from the pylorus, after which 

 it gradually contracts to the coeca, where it is four-twelfths and 

 a half. The rectum, at the commencement six-twelfths and 

 a half in width, gradually enlarges, and at the end forms an 

 oblong cloaca. The coeca come off at the distance of six 

 inches and a half from the end ; one is nine inches and a half 

 in length, the other eight, at the commencement only two- 

 twelfths in breadth, but enlarging to seven-twelfths, then 

 gradually narrowing to four-twelfths, their termination 

 rounded ; one much smaller there than the other. The heart 



