48 Capt. G. E. Shelley on the 



east Africa and Senegarabia, and probably extends down the 

 west coast, possibly to Angola. B. caffer is the only species 

 met with in South Africa^ and extends northwards on the 

 east coast, certainly to the Pangani River, and is probably 

 the only one met with south of the equator in East Africa. 

 Upon this supposition, which is not yet proved, I have based 

 my synonymy and distribution. 



1. EUCOKVUS ABYSSINICUS. 



Buceros abyssinicus, Bodd. Tabl. PI. Enl. 1783, p. 47 ; 

 Hartl. J. f. O. 1855, p. 361 \ 



Buceros africanus, Lath. Ind. Orn. i. 1790, p. 143. 



Buceros brae, Dumont, Diet. Sc. Nat. vi. 1817, p. 201. 



Trafjopan abyssinicus, Gray, List Gen. B. 184], p. 65 ; 

 Riipp. Syst. Uebers. p. 79. 



Bucorax abyssinicus, Hartl. Orn. W.-Afr. p. 165"; id. 

 J. f. O. 1861, p. 261'; Monteiro, Ibis, 1862, p. 338 '• Sharpe, 

 Ibis, 1869, p. 385'; Bocage, P. Z. S. 1873, p. 698. 



Tmetoceros abyssinicus. Cab. & Hein. Mus. Hein. ii. 1860, 

 p. 175 ; F. & H. Yog. Ostafr. p. 480° (part.) ; Finsch, Trans. 

 Z. S. vii. p. 279'. 



Buceros carunculatus abyssinicus, Sclil. Mus. P.-B. i. Bu- 

 ceros, 1862, p. 19. 



Buceros carunculatus guineensis, Schl. 1. c. p. 20 ; Bocage, 

 P. Z. S. 1873, p. 698. 



Bucorvus abyssinicus, ? Sclat. P. Z. S. 1864, p. Ill" ; Blanf. 

 Geol.&Zool. Abyss, p. 330'; Antin. & Salvad. Ann. Mus. 

 Civ. Gen. 1873, p. 420'"; Reichen. J. f. 0. 1875, p. 12"; 

 Elliot, Monogr. Bucerot. pi. 1 ; Salvad. Ann. Mus. Civ. Gen. 

 1884, p. lOr'; Dubois, Bull. Mus. Belg. iii. 1884, p. 221 ; 

 Rochebrune, Faun. Seuegamb., Ois. p. 113". 



Tmetoceros habyssinicus, Heugl. Orn. N.O.-Afr. pp. 731, 



Bucorvus pyrrhops, Elliot, Ann. & Mag. Nat. Hist. xx. 

 1877, p. 171 ; id. Monogr. Bucerot. pi. 2. 



Bucorax guineensis, Bocage, P. Z. S. 1873, p. 698. 



Bucorvus guineensis, Rochebrune, Faun. Senegamb., Ois. 

 XX. p. 113. 



