general colour rod, becoming deep yellow towards the point; posterior torminns black, as is also a
narroiv lino running along the culmon. Tho plnmagc is tho same as that of B. rhinoceros, bomg
bluish black, with white abdomen, thighs, and upper and lower taU-eovcrts. Tho tail is also white,
with a broad black band crossing it about two thirds from the base. Iris olive.
Length of bill along gape 8 inches, o{ casque H , height of casijuo 2. Total length 3 feet,
wing 17i inches, tail 15^, tarsus 2.
Tho fetmle resembles tho male, except that there is no black upon the bhl or casque, the
posterior terminus of the latter being red.
My description and figure wore talion from specimens in the British-Museum collection.