BUCBROTID^E. 227 



white; head and neck cinereous; back of head crested; 

 eyebrows, breast, and belly white, as are also the shafts 

 of the middle tail-feathers; legs brown ; bill slightly arched, 

 notched; maxilla slightly arched with a white keel; the 

 "region of the nostrils white, with black margins ; tip and 

 denticulations reddish ; mandibles black, with five elevated 

 ribs, white spotted. Length, 17"; wing, 8"; tail, 7"'. 

 Inhabits South Africa, according to Hartlaub. Sed non vidi. 



458. Buceros Erythrorhynchus ; Tockus 



Erythrorhynclius, Temm., PL En. 260 ; Hartlaub, 0. 

 W. Af., 165 ; Hydrocorax Senegalensis EryihrorJiyn- 

 chus, Briss., Orn. IV., p. 575 ; Le Toe, Le Vaillant, 

 PI. 238. 



TOP of head grey; forehead, cheeks, a line half-way down 

 the middle of back, some spots upon the shoulders, some of 

 the inner wing- feathers, more or less of the three outer 

 tail-feathers, and all the under parts, white ; outer wing- 

 feathers black, with some white markings ; four inner tail- 

 feathers- and rump black ; bill deep-red, elongated, curved, 

 sharply keeled above, not casqued, 3J inches long. Total 

 length, 19"; tail, 7" ; wing, 7" 6'". 



Sundevall gives this species as an inhabitant of Kaffraria. I have 

 not heard of it there ; but have received it in considerable numbers 

 from Mr. J. Chapman, who procured it towards the Zambesi. Mr. 

 Andersson obtained it in Damaraland. 



457. BucerOS NaSUtUS. (L.) Hartlaub, 0. W. 

 Af., p. 164 ; Hydrocorax Senegalensis Melanorhyn- 

 chus, Briss., Orn. IV., p. 573, t. 46, fig. 1 ; Calao 

 Nasique, Le Vail., O. Af, PL 236, 237; Tockus 

 Hastatus, Guv., PI. Enl. 890. 



ABOVE, pale-brown, the margins of the feathers lightest ; 

 head and neck, dusky-cinereous ; a line over each eye, patch 

 on the back, and the nuchal half- collar white ; underside 

 whitish ; breast brown ; the quill feathers of wing with light 

 margins ; base of tail white ; all tail-feathers black, with the 

 exception of the centre ones, which are of the colour of the 

 back, tip white, shafts black, centr-a ones white ; bill curved, 

 casqued ; upper mandible white, or pale yellow, at the basal 

 half ; tip and edge red ; lower man lible, basal half, black, 



