EHTTIDOCEROS. — PTILOLJEMUS. — OCYCEKOS. 45 



Rhytidoceros subruficoUis (Blyth). 



Khytidoceroa subruflcoUis, Elliot, Mon. Bwier. text to pi. xxxvi. (1878') ; 

 Oates, Birds Brit. Burm. ii. p. 91 (1883) ; id. ed. Hume, Nests Sr 

 I^gs Ind. Birds, iii. p. 81 (1890) ; Grant, Cat. Birds B. M. xvii. 

 p. 384 (1892) ; Blanf. Fauna Brit. Ind., Birds, iii. p. 148 (1895) ; 

 Sharpe, Hand-l. ii. p. 66 (1900). 



The eggs of Blyth's "Wreathed Hornbill in the Collection measure 

 respectively : 2-33 by 1-8 ; 2-25 by 1-75 ; 2-3 by 1-54. 



2. Meeawuddy,Tenaaserim, 27th Feb. Hume Coll. 



(C. T. Binr/ham). 

 1. Meeawuddy,ist March (C. r.^.). Hume Coll. 



Rhytidoceros plicatus (Forst.)^ 



Rhytidoceros plicatus, Elliot, Mon. Biicer. text to pi. xxxvii. (1878) ; 

 Grant, Cat. Bird& B. M. xvii. p. 385 (1892) ; Sharpe, Hand-l. ii. 

 p. 66 (1900). 



An egg of the Papuan Wreathed Hornbill measures 2 by 1"45. 



1. New Guinea. Old Collection. 



Genus PTILOL^MTJS, Ogilvie Grant. 

 Ptilolsemus tickelli (Blyth). 



Anorrhinus ticlielli, Elliot, Mwn. Bucei\ text to pi. xliii. (1880) ; Oates, 



Birds Brit. Bur-m. ii. p. 96 (1883) ; id. ed. Hume, Nests <5' Eggs 



Ind. Birds, iii. p. 76 (1890). 

 Ptilolfemus tickelli, Grant, Cat. Birds B. M. xvii. p. 392 (1892) ; Blanf. 



Fauna Brit. Ind., Birds, iii. p. 151 (1895) ; Sharpe, Hand-l. ii. p. 67 



(1900). 



The eggs of Tickell's Hornbill appear to be always elliptical 

 in shape. They measure from 1'68 to 1-9 in length, and from 

 1-27 to 1'36 in breadth. 



1. Thoungyin River, Tenasserim, 23rd Hume Coll. 



Feb. (C. T. Bingham). 

 5 Thoungyin River, 23rd Feb. Hume Coll. 



(C. T. B.). 

 9 Thoungyin RLver, 5th March Hume Coll. 



(C. T. B.). 



2. Thoungyin River, 5th April Hume Coll. 



(C. T. B.). 



Genus OCYCEROS, iTMjne. 

 Ocyceros birostris XScop.). 



Menieeros bicomis, Home, P. Z. S. 1869, p. 241. 



Lophoceros birostris, Elliot, Mon. Bucer. text to pi. xlviii. (1878) ; 



Blanf. Fauna Brit.. Ind., Bird», iii. p. 155 (1896). 

 Ocyceros birostris, Oates ed. Hume, Nests i^ Eggs Ind. Birds, iii. p. 74 



(1890) ; Grant., Cat. Birds B. M. xvii. p. 39;l (1892) ; Sharpe, 



Hand-l. ii. p. 67 (1900). 



