38 Mr. C. E. Hellmayr on the 



the eye, and ends in a very narrow pale Nile-blue border. 

 Hind crown, back, narrow frontal band, sides of the head, 

 throat, breast, sides of body, as well as wings and tail, deep 

 velvety black ; rump and upper-tail-coverts turquoise-blue, 

 the concealed basal portion of the feathers black ; whole 

 abdomen beautiful orange, passing into pale yellow on the 

 anal region ; under-tail-coverts dark olive, some with dull 

 orange tips. Axillaries and under-wing-coverts black. Bill 

 black ; feet blackish brown. 



Ten males measure: — Wing 55-59; tail 25-30; bill 

 9 mm. 



? ad. (Roraima, 19 Nov. 1885 ; H. Whitely, jr., coll.). — 

 Forehead and anterior part of the crown (occupied in the 

 male by the milky-white patch) dull pale bluish ; hind 

 crown and whole back bright grass-green. Wing-coverts, 

 quills, and tail-feathers dusky, with green margins, rather 

 paler than the back. Lores dirty yellowish, a narrow rim 

 round the eye rather purer ; sides of head and neck, fore- 

 neck, and sides of body dull green ; throat mixed with pale 

 yellowish ; middle of breast and abdomen, including under- 

 tail-coverts, bright yellow. Axillaries and under-wing-coverts 

 pale yellowish. Bill and feet dark horn-brown. 



Four females measure: — Wing 58-59; tail 29-30; bill 

 9 mm. 



There is very little variation amongst the specimens before 

 me. One S ad. has a few dark orange feathers on the middle 

 of the fore-neck, an indication of the yellow patch so pro- 

 minent in P. serena. The female resembles very closely 

 that of P. nattereri, but is at once known by having the 

 bluish tinge confined to the anterior portion of the crown. 



14. PlPRA SERENA. 



Pipra serena Linnseus, Syst. Nat. xii. torn. i. (1766) 

 p. 340 [based on Brisson's "Manakin a front blanc/' 

 Ornith. iv. p. 457 : Cayenne 1 ]. 



1 Linnaeus says " Habitat in Cayana, Surinamo," but be quotes only 

 Brisson, wbo expressly states "On le trouve a Cayenne." So far as 

 I know, tbe species has not yet been obtained in Surinam. 



