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same locality, and does not appear to be of any specific importance. Thus, of two fine male 

 examples in the Leyden Museum from Batang, Sumatra, named by Schlegel B. rhinoceros 

 sumatranus, one has a quite broad band, the other a comparatively narrow one, while the shape 

 and size of bills are equal. I have therefore placed Prof. Schlegel' s names as synonyms, as J 

 do not consider there are more than two species of this form, viz. the present and B. sylvestris 

 Vieill. 



According to Wallace, the exertion this Hornbill is compelled to make when flying is so 

 great that it is obliged to rest at intervals of about a mile. It feeds on fruits, and requires so 

 much to appease its appetite that a tree is soon stripped of all that is within reach ; for, on account 

 of its weight, the bird is only able to take those that are growing close to the larger branches. 

 It moves along these sideways, by a kind of shuffling hop, and seizes the fruit with the point of its 

 long bill. When it wishes to swallow any thing it may have obtained, the morsel is jerked 

 upwards into the air, the head held back, and the bill opened wide ; and the food is thus cast into 

 the throat. Except in localities where it has not been molested, this species is very shy, and the 

 appearance of a man, even at a considerable distance, will cause it to take flight at once. The 

 same fruit-tree is rarely visited more than two or three days consecutively; and in some districts 

 it is probably a matter of no slight difficulty for this large bird to provide itself with a meal 

 every day. 



The male B. rhinoceros has the bill straw-yellow, a triangular space at the lower base of 

 maxilla red, and one on the mandible black. A large casque, broad at base, sharp at top, extends 

 from the centre of the head to about halfway on the culmen, where it turns abruptly upwards, in 

 old individuals curving slightly backwards at the tip ; this is black posteriorly, and also on the 

 keel of the curved portion anteriorly. A narrow black line also runs along the side from above 

 the eye to the upper anterior part of the casque, which, with the exceptions just given, is of a 

 general red colour, becoming yellowish along the anterior edges. The head, which is slightly 

 crested, the neck, back, wings, and breast, as far as the thighs, are of a uniform bluish black. 

 Thighs, lower part of abdomen, crissum, rump, upper and under tail-coverts pure white. Tail 

 pure white, with a black band crossing all the feathers, distant about one third from the tips. 

 Iris yellowish white, surrounded by black ; eyelids red. Eeet and tarsi brownish black. 



Length of bill 9J inches, casque 6J, height of casque 2J ; total length 39J, wing 18|, tail 17. 



The plumage of the female is like that of the male ; but the back part of the casque is reddish 

 like the sides, and it is also without the narrow black line running from above the eye. 



