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XVI. Supplementary Notes on the Curassows now or lately living in the Society's 

 Gardem. By P. L. Sclater, M.A., Ph.D., F.R.S., Secretary to the Society. 



Eead June 18th, 1878. 



[Plates LXXXIX.-XCV.] 



Since I read my paper on the Curassows living in the Society's Gardens, five years 

 ago S many additional examples of these birds have been received by the Society. From 

 this source, and from the examination of specimens living in other Gardens, as also 

 from the study of examples in several Collections and Museums, I am enabled to 

 offer a few additional remarks, which, I trust, may tend to elucidate further the history 

 of this difficult group. 



1. Ceax globiceea. (Plate LXXXIX.) 



Crax ghbicera, Linn. Scl. Trans. Zool. Soc. ix. p. 274. 



I have already mentioned the fact that at Panama the male of this species shows a 

 slight white terminal margin to the tail, thereby approaching C. daubentoni. The 

 female of the Panama form is likewise different from the same sex of the more 

 northern bird, in having the tail blackish brown strongly barred with six or seven light 

 cross bands, and terminated by a similar margin. This is shown in Mr. Smit's drawing 

 (PL LXXXIX.), taken from a skin in the collection of Messrs. Salvin and Godman. 

 In a skin from Costa Kica in the same collection the bands are likewise well defined, 

 but much narrower. 



There are likewise examples of both sexes of the Panama form in the gallery of the 

 British Museum, and in the Society's living Collection. The latter are said to have 

 been obtained at Cartagena, which is the most southern locality yet recorded for this 

 species. 



2. Crax ektthrognatha. (Plate XC.) 



Crax erythrognatha, Scl. et Salv. P. Z. S. 1877, p. 22. 



Purpurascenti-nigra, ventre imo crissoque albis ; cristas plumis nigris, recurvis ; loris 

 nudis; cera et rostro basali rubris; hujus apice flavicante; pedibus in pelle sicca 

 pallide corylinis: long, tota 280, alee 16-0, caudae 11-0, tarsi 4-5. Fem. man similis, 

 sed crista plumis fasciis minutis albis variegatis. 



Hai. Columbiam interiorem. 



Mus. S.-G. 



Ohs. Similis C. alectori et omnino ejusdem formae, sed rostro rubro diversa. 



' See Trans. Zool. Soc. vol. ix. p. 273. 



VOL. X. — PART XIII. No. 1. — October 1st, 1879. 4 g 



