394 BUCEEOTIDJi:. 



14. OCYCEROS. 



Ocyceros, Hvme, Nests Sf Egfjs hid. B. p. 113 Type. 



(1873) 0. ginginiauus. 



Size small ; bill moderate, curved, with or without a small keel- 

 shaped casque ; sides of the throat more or less naked ; tail wedge- 

 shaped ; crest slight ; plumage grey, below white or grey. 

 . Bange, Peninsula of India and Ceylon. 



Key to the Species. 



A. Bill with a suiall well-developed keel-shaped 



casque birostris, p. 394. 



B. Bill without a casque. 



(I. Underparts grey ; second pair of tail-feathers 



brownish black griseus, p. 390. 



/;. Underparts greyish white ; second pair of tail- 

 feathers black, with white ends gingalensis, p. 307. 



1. Ocyceros birostris. 



Le Calao de Gingi, Sonn. Voy. Ind. Orient, ii. p. 214, pi. 120 (1782) 

 Levaill. Hist. Nat. d'Ois. VAmer. i. p. 32, pi. 15 (1801). 



Gingi Hornbill, Lath. Gen. Sgn. Suppl. i. p. 71 (1787). 



Buceros birostris, Scoj). Del. Faun, et Flor. Insuhr. ii. p. 87 (1786) 

 Blyth, J. As. Soc. Beng. xvi. p. 995 (1847). 



Lophoceros birostris, Elliot, Mon. Bucerot. pi. 48 [text] (1878) 

 Sivinhoe Sf Barnes, Ibis, 1885, p. 62. 



Ocvceros birostris, Davids. S,- Wend. Str. F. vii. p. 78 (1878) 

 Hume, Str. F. vii. p. 205 (1878); Butler, Str. F. ix. p. 384 

 (1880) ; Beid, Str. F. ix. p. 22 (1881) ; Davids. Str. F. x. p. 296 

 (1882); Oates, Humes Nests S)- Eggs Ind. B. iii. p. 74 (1890). 



Buceros (Lophoceros) birostris, Dubois, Bull. Mas. Belg. iii. p. 212 

 (1884). _ _ 



Buceros ginginianus. Lath. Ind. Orn. i. p. 146 (1790) ; Shaiv, Gen. 

 ZooLwiu. p. 36(1811); Vieill. N. Diet. d'Hist. Nat. iv. p. 594 

 (1816) ; Dumont, Diet. Sc. Nat. vi. p. 207 (1817) ; Temm. PI. Col. 

 ii. sp. 13 [text] (1824) ; Merrem, Ersch u. Gruber, Encycl. p. 285 

 (1824) ; Blyth, J. As. Soc. Beng. xii. pt. ii. p. 996 (1843) ; Gray, 

 Gen. B. ii. p. 400 (1847) ; Schleg. Mus. Pays-Bas, i. Buceros, p. 11 

 (1862). 



Penelopides ginginianus. Cab. <§• Heine, Mus. Hein. ii. p. 169 (1860). 



Tockus ginginianus, Bonap. Consp. Gen. Av. i. p. 91 (1850). 



Meniceros ginginianus, Bonap. Consp. Vol. Anisod. p. 3 (1854). 



Ocyceros ginginianus, Hume, Nests S^ Eggs Ind. B. p. 113 (1873). 



Buceros oxyurus, Wagl. Syst. Av. Buceros, no. 14 (1827). 



Buceros gingianus, Less. Traite Orn. p. 253 (1831) ; Gray, Gen. B. 

 ii. p. 400 (1847). 



Meniceros (Ocyceros) ginginianus, Ball, Str. F. ii. p. 388 (1874). 



Buceros cinerascens, Hodgs. Icon. ined. in Brit. Mus., Passei'es, pi. 31.3 

 (no. 58) ; Gray, Zool. Misc. p. 85 (1844). 



Meniceros bicornis, Jerdon, B. Ind. i. p. 248 (1862) ; Blyth, Ibis, 

 1866, p. 3.50 ; Home, P. Z. S. 1869, p. 241 ; Marshall, Str. F. iii. 

 p. 331 (1875) ; Butler, Str. F. iii. p. 457 (1875), iv. p. 37 (1876) ; 



