250 Lloyd's natural history. 



Ortalis erythi'optera^ Ogilvie-Grant, Cat. B. Brit. Mus. xxii. 

 p. 516(1893). 



Adult. — Easily distinguished from the two preceding species 

 by having the four outer pairs of tail-feathers ividely tipped 

 with dark chestnut. From O. garrula, which it otherwise 

 resembles, it may be further distinguished by having the top 

 of the head and nape brighter chestnut, and the inider tail- 

 coverts of a paler chestnut colour. Total length, 24 inches; 

 wing, 9'2 ; tail, io*6; tarsus, 3'i ; middle toe and claw, 3-1. 



Range. — North-western South America ; Babahoyo, Guaya- 

 quil, and Palmal, Western Ecuador. ? Cumana, Venezuela. 



THE PIPING GUANS. GENUS PIPILE. 

 Pipile, Bonap, C. R. xlii. p. 877 (1856). 

 Type, P. cumanensis (Jacquin). 



The width of the upper mandible greater than the height. 



Sexes similar in plumage. A well-developed crest of pointed 

 feathers. A large patch round the eyes naked. Front of the 

 neck almost naked, with a median wattle. 



Tail composed of twelve feathers, rather long and rounded, 

 the outer pair being distinctly shorter than the middle pair. 



Two outer priina?y flight-feathers with the last third of the 

 inner web deeply excised. The first much shorter than the 

 second, which is about equal to the tenth ; sixth slightly the 

 longest. 



Tarsus shorter than the middle toe and claw. 



L THE WHITE-HEADED PIPING GUAN. PIPILE CUMANENSIS. 



Crax cujnane7isis, Jacquin, Beytr. p. 25, pi. 10 (1784). 



Cr^x/////^, Jacquin, Beytr. p. 26, pi. 11 (1784). 



Penelope leucolophos, Merrem, Av. Icones et Descr. ii. pp. 43, 



44. pi. 12 (17S6); id. Beytr. Vog. ii. pp. 46, 47, pi. \2 



(1786). 



