EnTTIDOCEROS. — PTILOLyEMFS. — OCYCEROS. 45 



Rhytidoceros subruficollis {Bhjth). 



EliYtidoceros sitbruficolli?, Elliot, M(»i. Biicer. text to pi. xxxvi. (1878) ; 



' Oaies, Birds Brit. Burm. ii. p. 91 (1883) ; id. ed. Hume, Nests .V 



Egqs Ind. Birds, iii. p. 81 (1890) ; Grant, C(d. Birds li. M. xvii. 



p. 384 (1892) ; Blanf. Fauna Brit. Ind., Birds, iii. p. 148 (189o) ; 



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



The eggs of Blyth's Wreathed Honibill in the Collection measure 

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



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



{C. T. Bill) /ham). 

 1. Meeawuddy, Ist March {C. T.B.). Hume Coll. 



Ehytidoceros plicatus {Forst.). 



Rhytidocerof? plicatus, Elliot, Mon. Biicer. text to pi. xxxvii. (1S78) ; 

 Grant, Cat. Birds B. M. xvii. p. 385 (1892) ; Sharpe, lland-l. ii. 

 p. 60 (1900). 



An G^^ of the Papuan "Wreathed Hornbill measures 2 by 1-45, 



1. New Guinea, Old Collection. 



Genus PTILOL^MUS, Oijilvie Grant. 

 Ptilolaemus tickelli {Bhjth). 



Ar.orrhinus ticliclli, Elliut, 3loii. Bucer. text to pi. xliii. (1880) ; Oates 



Birds Brit. Burm. ii. p. 96 (1883) ; id. ed. Hume, Nests &• Eqqs 



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

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



Fauna Brit. Ind., Birds, iii. p. \'A (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 l*oG in breadth, 



1. Thoungy in River, Tenasserim, 23rd Hume Coll, 



Feb. (C. r. Bi7igham). 

 5. Thoungyin River, 23rd Feb. Hume Coll, 



(C. T.B.). _ 

 9. Thouugvin River, 5th March Hume Coll. 



(C f.B.). 



2, ThouDgyin River, 5th April Hume Coll. 



{C.T.B.). 



Genus OCYCEROS, Hume. 



Ocyceros birostris (Scop.). 



Meniceros bicornis. Home, P. Z. S. 1860, p. 241. 



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

 Blanf. Fauna Brit. Ind., Birds, iii. p. 155 (1895). 



Ocyceros birostris, Oates ed. Hume, Nests Sf Eqgs Ind. Birds, iii. p. 74 

 (1890) ; Grant, Cat. Birds B. M. xvii. p. 394 (1892) ; Sharpe, 

 Hand-l. ii. p. 67 (lOOOj. ^ ' 



