PAM: BUCEROTIDAS 
NI 
2. Buceros rhinoceros var. silvestris (Vieillot). Java. 
? Buceros africanus Gmelin, Syst. Nat. Vol. 1, p. 359 (1788). 
Buceros silvestris Vieillot, Nouv. Dict. Hist. Nat. Vol. 4, p. 592 (1816); Elliot, Monogr. 
Bucerot. pl. 5 (1882). 
Buceros diadematus Dumont, Dict. Sc. Nat. Vol. 4, p. 203 (1817). 
Buceros niger Merrem, Ersch. u. Grub., Encycl. Vol. 13, p. 286 (1824). 
Buceros lunatus Temminck, P]. Col. Vol. 2, p. 63, pl. 546 (1834). 
Buceros rhinoceros javanicus Muller & Schlegel, Verh. Ges. Ned. Ind. p. 22 (1839-44). 
Buceros rhinoceros lunatus Schlegel, Mus. Pays-Bas(Buceros), p. 5 (1862). 
Buceros rhinoceros var. silvestris Dubois, Bull. Mus. Hist. Nat. Bele. Vol. 3, p. 194 
(1884). 
4. GENUS DICHOCEROS GLOoGER 
Dichoceros Gloger, Hand- u. Hilfsb. p. 335 (1842) (type : Buceros cavatus). 
Synonym : Homraius Bonaparte, Consp. Volucr. Anisod. p. 2 (1854) (type : Bucevos bicornts). 
Characters. Bill very large, stout, curved and pointed at tip; casque very broad, sub- 
quadrate, covering about the basal half of the culmen, flat, convex behind, concave in front, 
and rising on both sides into a square corner, which turns slightly upwards into miniature 
horns projecting forward. Skin around eyes and sides of throat naked. Wings ample. Tail long, 
broad, rounded, with a broad sub-terminal black band. Tarsi short, stout. Size large. 
Geographical Distribution. Only one species, inhabiting South-eastern Asia and 
Sumatra. 
1. Dichoceros bicornis (Linneus). (Plate 1, Figs. 3, 3a.) Indo-Chinese countries, 
Buceros bicornis Linnzeus, Syst. Nat. Vol. 1, p. 153 (1766). Malacca, Sumatra. 
Buceros cavatus, Shaw, Gen. Zool. Vol. 8, p. 18 (1811); Gould, Cent. Birds, p. 44, 
pl. (1832). 
Buceros cristatus Vieillot. Nouv. Dict. Hist. Nat. Vol. 4, p. 591 (1816). 
Buceros homrai Hodgson, Journ. Asiat. Soc. Beng. p. 251 (1832). 
Dichoceros cavatus Gloger, Hand- u. Hilfsb. p. 335 (1842). 
Homyatus bicornis Bonaparte, Consp. Volucr. Anisod. p. 2 (1854). 
Dichoceros bicornis Cabanis & Heine, Mus. Heinean. Vel. 2, p. 173 (1860); Elliot, 
Monoer. Bucerot. pl. 6 (1882). 
Dichoceros homrai Hume, Nests and Eggs Ind. Birds, p. 111 (1873). 
Buceros (Dichoceros) bicornis Dubois, Bull. Mus Hist. Nat. Belg. Vol. 3, p. 195 (1884). 
5. GENUS HYDROCORAX BrISSON 
Hydrocorax Brisson, Ornith. Vol. 4, p. 565 (1760) (type : Buceros hydrocorax). 
ay 
Synonym : Platyceros Cabanis.& Heine, Mus. Heinean. Vol. 2, p. 170 (1860) (type : Buceros 
hydyocovax). 
Characters. Bill large, strong, pointed, much curved towards the tip; casque large, flat, 
extending two-thirds the length of the culmen, wide at the posterior end, rather pointed antert- 
orly. Skin around eyes and sides of the throat naked. Wings ample, rather long. Tail long 
and rounded, white stained with buff. Crest moderate. 
Geographical Distribution, Philippine Islands. 
