catalogue: 
599 
Rhyticeros plicatus, ReicJienbach, Syst. Av. 
Calao plicatus, JBonap., G, G. Av. p. 90. 
Buceros obscurus, Gmelin, S. iV. I. p. 362. 
Buceros undulatus, Shaw, Zool. YIII. p. 26. {Le VailL, 
Ois. d'Amer. et Ind. tt. 20, 21, $ .) Horsfield, 
Trans, Linn. Soc. XIII. p. 175. Vigors, Hem, 
Baffles, p. 666. 
Buceros javanicus, Shaw, Zool. YIII. p. 28. {Le Vaill.y 
Ois. d'Amer. et Ind, t. I^^jun.) 
Buceros javanus, Vieillot. 
Buceros niger, Vieillot. 
Buceros annulatus, Drapiez. 
Buceros Pusaran, Baffles, Trans. Linn. Soc. XIII. p. 293 
(1822). Blyth, J. A. S. Beng. XII. p. 990; XVI. 
p. 998 ; Cat. B. Mus. A. S. Beng. p. 45. 
Buceros ruficoUis, apudBh/th, J. A. JS. Beng. XII. p. 176. 
"Wreathed Hornbill, Lath., Gen. Syn. I. p. 358. 
GoGE or BoBosAN, Java, Horsjield. 
A. ^. Malacca. From Griffith's Collection. 
B. ? , and Drawing of Adult and Young. Java. From 
Dr. Horsfield's Collection. 
c. d. e. ^. Adult and Young. Pinang. Presented by 
Dr. Cantor. 
/. ^. Drawing. From Dr. Wallich's Collection. 
Distinguished from B. suhrujlcollis by its superior size, the flat- 
ness of its casque, and the lateral transverse ridges of the basal 
portion of the bill itself ; these last being constantly absent in the 
other, which has likewise the casque much more elevate, or convex. 
" In the full-grown young of B. plicatus,''^ remarks Mr. Blyth, " these 
lateral ridges of the bill do not appear till after three or four corru- 
gations are exhibited on the casque ; prior to which the bill much 
resembles that of A. nipalensis of corresponding age, except that the 
bulge in place of the casque is more decided." 
" This species is very abundant in the extensive forests of the 
province of Blambangan, at the eastern extremity of Java. The 
nest is made in hollow trees, and is so constructed as completely to 
confine the female, leaving only an aperture for the protrusion of 
the bill. During the period of incubation, the female is fed by the 
