On an apparently new Species of Hornbill. 177 



Subregio guineensis. — Peculiar genus 1. Peculiar species 

 7 : Platystira cyanea, P. albifrons, Batis senegalensis, B. mi- 

 nima, Diaphorophya castanea, D. blissetti, D. concreta. 



Subregio madagascariensis . — P. molitor is stated to have 

 been met with on the West Coast by Bojer in 1829, but has 

 never been obtained since. 



XXI. — On an apparently new Species of Hornbill from Angola. 

 By D. G. Elliot, F.L.S., F.Z.S., &c. 



BtTCEROS SHARPII. 



Bill without casque, but the maxilla swollen into a promi- 

 nent ridge, broad and corrugated at the base, becoming narrow 

 at the anterior portion, and gradually falling into the outline 

 of the culmen. The base, which ends abruptly about half an 

 inch above the head, has four rather deep plaits. The man- 

 dible is rugged and creased nearly to the end, with the cut- 

 ting portion serrated. The culmen and tips of bill yellowish 

 horn-colour ; a broad stripe for about two thirds the length 

 of the maxilla and nearly all the mandible (save the tip above 

 mentioned) black. Base of maxilla beneath the nostril, and 

 spot on base of mandible, yellowish white. 



Head covered with a long crest; feathers of cheeks and 

 throat also long and loose ; all these parts, together with the 

 back, black, with a bright greenish lustre. Primaries black. 

 Secondaries, with the exception of the three innermost ones, 

 white for three fourths their entire length, greenish black at 

 base ; the innermost ones same colour as the back. Under 

 wing-coverts, lower part of breast, under tail-coverts, rump, 

 and legs pure white. Tail — the two median feathers black for 

 their entire length, without any white ; the ones next to the 

 median on either side white from half their length from the 

 tip, remaining portion like the central ones ; the lateral fea- 

 thers pure white for their entire length, with the exception 

 of the outermost ones, which have the basal half of the outer 

 webs black. Total length 21 inches, wing 11, tail 9j. 



The above description is taken from an adult male specimen 



