WHITE-TAILED SEA-EAGLE. 223 



and dilates into a globular cloaca, two and a half inches in 

 diameter, into which it opens by an aperture of half an inch. 

 The lobes of the liver are very large, the right being three 

 inches and a half in length, the left three inches; the gall- 

 bladder elliptical, and an inch in length. Plate XX, Fig. 1. 



The trachea is ten inches long, considerably flattened, some- 

 what tapering, its breadth ten-twelfths at the commencement, 

 at the middle seven and a half twelfths, at the lowest part six 

 and a half The rings are all cartilaginous, a hundred and 

 twenty-five in number ; the bronchi wide, short, with twenty 

 half-rings. The lateral muscles are moderate, the sterno-tra- 

 cheal very strong, and there is a single pair of inferior laryngeal 

 muscles going to the last dimidiate ring of the trachea. 



The space between the bill and the eye is thinly covered 

 with bristle-like feathers, which are downy at the base. The 

 feathers on the head are of moderate length, those on the neck 

 long, all lanceolate and acuminate, with loose margins ; on the 

 upper parts of the body they are broadly ovate and acute, on 

 the lower ovate and rather obtuse. The wings, which when 

 closed reach nearly to the end of the tail, have thirty quills, of 

 which the first is a little shorter than the seventh, the second 

 about the same length as the fifth, the third and fourth longest. 

 The tail is of moderate length, broad, and much rounded, the 

 lateral feathers being three inches shorter than the middle. 



The cere and bill are pale yellow ; the iris bright yellow ; 

 the tarsi and toes gamboge, the claws black, with a tinge of 

 greyish-blue. The plumage of the head, neck, fore part of the 

 back and breast, with the upper wing-coverts greyish-yellow, 

 the feathers all greyish-brown at the base ; of the other parts 

 greyish-brown, edged with yellowish-grey ; the scapulars and 

 feathers of the rumjD glossed with purple ; those of the abdo- 

 men, tibiae, and subcaudal region, inclining to chocolate brown ; 

 the quills and alular feathers brownish-black, with a tinge of 

 grey, the inner secondaries inclining to greyish-brown ; the 

 shafts of all white toward the base ; the lower surface of the 

 quills and the large coverts tinged with greyish blue. The 

 upper tail-coverts and the tail are white (generally freckled 

 with dusky grey at the base). The down on the breast is pale 

 grey, that on the sides darker. 



