56 Capt. G. E. Slielley on the 



boon (Marche') ; Ashantee {Per); Fantec, Gold Coast 

 {Usshcr'); Liberia {BUttikofer') . 



12. BUCEROS ALBOTIBIALIS. 



Buceros albotibialis, Reichen. J. f. O. 1877, p. 19 (no 

 descr.)'; Cab. & Reichen. t. c. p. 103 (orig. descr.) ; Bocage, 

 Orn. Angola, p. 540; Dubois, Bull. Mus. Belg. iii. 1884, 

 p. 202. 



Bycanistes albotibialis, Elliot, Monogr. Bucerot. pi. 31. 



Hab. West Africa. Myambo country {Petit, Brit. Mus.) ; 

 Loango Coast {Falkenstein^) . 



4. LOPHOCEROS. 



1828. Z/0/j/iOcero5, Hempr.&Elir. Symb. Type. 



Pliys. fol. z L. nasutus. 



1828. Alopius, Hempr. & Ehr. t. c. 



fol. a a (nee Alopiis, Schonli. 1826, 



Coleoptera) L. erylhrorhynchus. 



1831. Tockus, Less. Traits Orn. p. 252 L. erythrorhynchus. 

 1842. Rhynchoceros, Gloger, Hand- u. 



Hilfsb. 1842, p. 335 L. mdanoleucus . 



1849. Grammicus, Reichb. Syst. Av. 



p. 49 L. nasutus. 



Key to the Species. 



a. Breast white. 



rt\ Head, neck, and upper parts black, with 



the exception of the second and third 



pairs of tail-feathei's, counting from the 



outer ones, which are black and white or 



entirely white. 



a^. Tip of the bill with no trace of red. 



Lower mandible smoother, and in 



adults with an oblique band of black 



from the middle towards the base. 



Tail with the second and third pairs 



of feathers, counting from the outer 



rectrices, black for more than half 



their length 13. L fasciatus. 



