EHYTTDOCEROS. FTILOL^MUS. OCYCEROS. 45 



Rhytidoceros subruficollis (Blyifi). 



Rhytidoceros subruficollis, Elliot, Man. Bucer. text to pi. xxxvi. (1878) ; 



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



Eggs 2nd. Birds, iii. p. 81 (1890) ; Grant, Cat. Birds B. M. xvii. 



p. 384 (1892) ; Blanf. Fauna Brit. 2nd., 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 175 ; 2'3 by 1-54. 



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



(C. T. Bingham}. 

 1. Meeawuddy, 1st March (C. T.B.). Hume Coll. 



Rhytidoceros plicatus (Forst.). 



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

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

 p. CO (1900). 



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

 1. New Guinea. Old Collection. 



Genus PTILOUEMUS, Oyilvie Grant. 

 Ptilolaemus tickelli (Blytli). 



Anorrhinus tickelli, Elliot, Mon. JBucer. text to pi. xliii. (1880) ; Oates, 



Birds Brit. Burm. ii. p. 96 (1883) ; id. ed. Hume, Nests $ Eggs 



2nd. Birds, iii. p. 76 (1890). 

 Ptilohemus 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. 



Genus OCYCEROS, Hume. 



Ocyceros birostris (Scop.). 



Meniceros bicornis, Home, P. Z. S. 1869, p. 241. 



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



Blanf. Fauna Brit. 2nd., Birds, iii. p. 155 (1895). 

 Ocyceros birostris, Oates ed. Hume, Nests $ Eggs 2nd. Birds, iii. p. 74 



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



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



