40 Mr. C. E. Hellmayr on the 



outer webs. Lores and sides of the head rather duller 

 greenish than the back. Under-parts bright clear yellow, 

 throat, fore-neck, and sides of breast but slightly suffused 

 with greenish; axillaries and under-wing-coverts pale yellow; 

 inner webs of remiges very distinctly margined with yellowish 

 white. Bill horn-brown, lower mandible and extreme tip of 

 the maxilla whitish; feet flesh-coloured; iris dirty white 

 (Natterer, MS.). Wing 52 ; tail 27 ; bill 9 mm. 



This specimen is apparently the female of what will 

 doubtless prove to be a brilliant species of Pipra. In general 

 colour it resembles the female of P. nattereri, having the bill 

 of the same shape, size, and colour, and the feet flesh-coloured, 

 but is seen to differ at once in its green (not bluish) pileum, 

 and less greenish suffusion on the throat and fore-neck. From 

 P. serena ? it is easily recognisable by its flesh-coloured 

 feet, from that of P. opalizans by its much smaller and 

 darker bill, much less greenish throat and chest, and lighter 

 green back. 



16. Pipra nattereri. 



Pipra nattereri Sclater, P. Z. S. 1864, p. 611, tab. 39, descr. 

 orig. $ ? [Borba, Rio Madeira] ; Pelzeln, Zur Ornith. 

 Brasil. ii. (1868) p. 127 [pt., Borba]. 



Habitat. North Brazil : Borba, Rio Madeira (Natterer 

 coll.). 



Type. S a( i-, Borba, coll. Natterer, in Mus. Vindob. 



$ ad. (Mus. Vindob., Borba, Rio Madeira, January 1830; 

 Natterer coll. : type of species). — Top of the head and nape 

 as well as the rump and upper tail-coverts beautiful white, 

 slightly opalizant, the white cap bordered below by a narrow 

 pale bluish line beginning from the eye and reaching to the 

 sides of the nape. Whole back and outer margins of the 

 upper-wing-coverts, quills, and tail-feathers bright grass- 

 green ; inner webs of wing- and tail-feathers dusky. Sides 

 of the head and neck dull greenish. Under-surface bright 

 clear yellow, chin and throat washed with greenish. Axil- 

 laries and under-wing-coverts yellowish white; along the 

 inner webs of the quills a narrow yellowish-white margin. 

 "Iris dirty white; culmen greyish black, lower mandible 



