( KH) ) 



Snapnre, Canra 1{. : S'^ (sexeil ?) iD. x., ? ? 12, 20. x. I'.iiKi (Klajfcs). 



" lri<ies chestnut ; bare skin ronnd eyes bine : broail ]iulo bhie buiul at base of 

 lower mandible, and broad 3-ellow band at base of upper mandible extending along 

 the top of the cnlmen to tip, rest of bill reddish brown : feet black." 



Ti/pus : S 16. ii. 1901, La Pricion, Andre coll. 



The series collected b\' Messrs. Andre' and Klages on the (."aura River leave no 

 doubt as to the constancy' of the ditference in the colour of the bill of this form, 

 which might be called a subspecies of R. eri/tlirorln/nclius * of Guiana. 



While it agrees with the latter in the colour of the upper tail-coverts, which are 

 pure sulphur-yellow, not orange-yellow, its liill is very differently coloured, being of 

 a dark sanguineous red clouded with obscure black, instead of being of a clear lierv 

 or orange-red colour. Other ditt'erences are not apparent on the skins. 



B. l/aematorhi/nchus forms an iuteresting transition between R. en/throrhjtwhus 

 of Guiana and R. cuvieri from the Amazons, or rather more with 7i'. cufieri i/ica 

 from Bolivia, etc. 



339. Ramphastos osculans Gould (snbsp. ?). 



Tl(imi)lutislox oscnJfiHs Gould, /'. Z. S. 1835 p. 1.5G. //nb. in Brasilia— we substitute Rio Negro. 



Mnnduapo, Upper Orinoco : S ad. In. ii. 'O'.i. " Iris seal ; feet glaucous blue: 

 bill as sketch." (No. 11889 Cherrie coll.) 



This specimen has the upjier tail-coverts scarlet, only orange at their lower 

 portion, just above the black base. Most of the specimens of 7?. osculans in the 

 British Museum have the upper tail-coverts orange, not scarlet, but there is some 

 variation in this respect.f The basal band of the bill is yellow in the skins in 

 the British Museum, but Gould figures it greenish. In the Mnnduapo bird the 

 upper portion is sulphur-yellow, the lower azure-blue (upper third yellow, somewhat 

 irregularly separated from the slaty basal portion in skiu). The chest of the 

 Mnnduapo bird is beautiful orange, the upper jiortion citron-yellow. 



* Tlie proper name of the species now tailed 11. tvytliriirliijnchus should probably be i?. luramts 

 Linn., Sijst. I\'ai. Ed. X..p. 103. II. vwniUt Jliill, A'atuni/st., Suppl. p. SS, is also older than It. erijlhro- 

 r!iijncliiis (im. It is prohahly ba.sed on Daubcnton's plate, but tliis is not quite evident, and the colour of 

 the bill not even being mentioned we can safely reject that name. 



t In one .idult specimen from "Ciuiana" the upper tail-coverts are pale orcnge-yellow, in one from 

 " Oyapok, Cayenne '' they are bright orange-yellow, in one from the " Rio Negro " of the same bright 

 orange-yellow with scarlet lips, in anotlier from the "Rio Negro" of a lighter orange-yellow. Tlie two 

 Rio Negro specimens (supposed by Dr. .Sclater to be immature) have ihe chest yellow, the other orange. 



Tlie Munduapo specimen may belong to a new form, but more material should be studied before 

 naming it. 



