RINGED DOVE, OR CUSHAT. 261 



and a half in length ; it continues ui^wards beneath the right 

 lobe of the liver, receiving the biliary ducts, then curves down- 

 wards on the right side, is convoluted on the mesentery, being 

 for the greater part of its length doubled, the descending por- 

 tion distinguishable from the ascending by its lighter colour. 

 The rectum is two inches long ; the coeca four-twelfths of an 

 inch in length, cylindrical, rather pointed, one-twelfth in diame- 

 ter. The inner surface of the duodenal portion is smooth, of 

 the rest villous, of the rectum granulated and glandular. The 

 diameter of the intestine is four-twelfths in its upper part, 

 three-twelfths in the lower ; that of the rectum is four-twelfths 

 and a half. 



The eyes are rather small ; the eyelids bare, and without 

 ciliary bristles, their aperture four and a half twelfths. The 

 nostrils are linear, wider at the fore part, three-twelths long. 

 The aperture of the ear is roundish, of moderate size, three- 

 twelfths in diameter, the tube funnel-shaped. 



The feet are short and rather strong ; the tarsi very short, 

 feathered anteriorly nearly half-way down, with five large scu- 

 tella, the hind part with flat granules. The first toe, which 

 is shortest and thickest, has eight, the second eleven, the third 

 sixteen, the fourth fifteen scutella. The claws are small, arched, 

 compressed, and rather acute. 



The plumage is of ordinary texture above, rather blended 

 beneath. The feathers are generally ovato-oblong ; those of 

 the head short, of the sides and hind part of the neck imbri- 

 cated, with flattened shining filaments. The wings are long 

 and broad. The primary quills ten, broad, obliquely rounded ; 

 the second and third longest, the first nearly as long as the 

 fourth. The secondaries twelve, broad, rounded, the inner 

 short. The tail is long, very ample, slightly rounded, of twelve 

 very broad, rather abruptly rounded feathers. 



The bill is horn-coloured, or greyish-yellow, at the end, its 

 soft basal parts deep red, the tumid portion whitish. The iris 

 is pale yellow, the eyelids flesh-coloured, the bare skin in their 

 vicinity blue. The tarsi and toes are anteriorly carnaine-purple, 

 posteriorly flesh-coloured ; the claws dark-brown. 



The head and upper part of the neck are greyish-blue ; the 



