ASTUR ALBUS. 



agreeing with that now described, and the female in the collection of the 

 Linnean Society. 



Total length of the male 16 inches ; that of the female 20^ inches. The 

 body is entirely of the purest white ; the bill is deep bluish-black ; the cere 

 is pale yellow, the space between the cere and eyes is sparingly covered with 

 feathers, and has numerous incumbent setae joining over the base of the 

 bill ; the irides are light olive, tinged with yellow. The legs are yellow ; the 

 claws are black, and very strong. There appears to be no difference in plum- 

 age between the male and female. The young, for the first year at least, are 

 irregularly spotted with pale dusky brown. 



