210 ZOOLOGICAL RESEARCHES 



Gould , as it contaius some details which have been 

 overlooked by the latter , who has , for instance , omitted 

 to mention the whitish superciliar band , carried on up to 

 the neck and bordering the whole crown of the head. 



My female bird from Liberia, undoubtedly a full-grown 

 one , is somewhat smaller than the three male specimens in 

 our Museum, and its much shorter bill is entirely black. 

 In the color of its plumage there exists not the least dif- 

 ference between male and female. The prominence of the 

 bill of the latter is pretty well developed and would enable 

 it to pass for a somewhat younger male. 



The measurements of the four specimens under my notice 

 are as follows (in cm.): 



culmen. wing. tail. tarsus. 



Males 5,7—6,5 14,5 16,3 2,5 

 Female 4,7 13,6 14 2,2 



Iris brown, bill of male black, with a tinge of blood- 

 red, which color prevails at the tip; bill of female enti- 

 rely black, feet black. 



This species is, still more than B. alboeristatus j very 

 quiet in all its motions. It never leaves , as I think , the 

 virgin forest, where alone or in pairs it flies noiselessly 

 through the lower branches of the trees and is only oc- 

 casionally observed by the huntsman. We have never heard 

 a note from it. 



Sue e 7' OS camurus. 



TocJcus camurus^ Cass. Proc. Acad. Nat. Sc. Philad. 1856; 

 — Boc. Orn. d'Ang. p. 541; — Elliot, Monogr. Buc. 

 1882. 



Buceros camurus , Hartl. Orn. W. Afr. p. 267. 



Buceros pulchrirostris , Schl. Tijdschr. v. Dierk. I. 1863, 

 p. 74, pi. 4; id. Mus. P.-B., Buceros, p. 15. 



Hab. West Africa, from Liberia to the Loango Coast. 



Six specimens (two males and four females) collected 

 near Sofore Place. 



Notes from, the I-ieyden IVEuseuxii , "Vol. VII. 



