286 ME P. L. SCLATER ON THE CUEASSOWS 



" When I had the pleasure of consulting several high authorities respecting this bird, 

 they all agreed that it was the female of Pauxi galeata, which for some time 

 satisfied me. But one of the supposed Hack males of Fausi galeata in my aviary, small 

 in size, has been seen to lay an egg, and has paired with the other black male, thus 

 proving that the female in this species is exactly like the male, and not as described by 

 you. P. Z. S. 1870, p. 519." 



Under these circumstances, I think there can be no question that the normal female 

 of the present species resembles the male in plumage, and that the red bird either is of 

 a distinct species or presents the exceptional case of a dimorphic female. I rather 

 incline to the latter view, because Mr. Eowley's specimen was, I believe, received from 

 the same port as his pair of the ordinary Patixi galeata, and because Temminck' says 

 of this species, "Le plumage des femelles ne diifere point: les jeunes ont des teintes brunes 

 et rousses." It may be, therefore, that in some cases the females remain throughout 

 life in the immature plumage, as, I have reason to suspect, is sometimes the case in 

 other species where the adult male and female are clad alike and the young has a 

 different dress. 



lAst of specimens of Pauxis galeata exhibited since 1860. 



(7, h. Males C?) Purchased July 28, 1870. 



DESCEIPTION OF THE PLATES. 



PLATE XL. 



Crax glolicera, male and female, from specimens living in the Society's Gardens in 

 September 1870. 



PLATE XLl. 



Crax daubentoni, male, from a specimen received from Tucacas, Venezuela, and pre- 

 sented to the Society by Mr. J. Wright, September 29, 1870. See Rev. Cat. 

 of Vert. (1872) p. 295. 



PLATE XLII. 

 Crax daubentoni, female, from the specimen received on the same occasion. 



' Pig. et Gall. iii. p. 4. 



i 



