( !>7 ) 



the naked portions of the throat and t'oreneck are slate-blackish (upper throat 

 aznre bluish in life, according to Cherrie). 



In Western Mattogrosso, on the headr^uarters of the Rio Madeira (Rio 

 Gaapor^), and in Paraguay, another fairly well-marked form is found. This has, like 

 /'. c. viimanensis, the naked skin on the throat and foreneck slatc-blackish, liut the 

 wattle is quite differently shaped, being a long, slender, jjendulous caruncle. In 

 the Bull. Brit. Orn. Club, xiv. No. cv. (March 1904) p. 60, I first pointed out the 

 distinctness of this race, but called it erroneously P. nattereri. As I have ascertained 

 now, its proper name is P. cumanetisis grai/i Pelz. (see below). 



The characters and ranges of the three forms may be summarised as follows : 



(a) P. cumanensis cumanensis (Jacqu.). 



" Crax (^cumanensis)" .Jacquin, Bcytr. Gcsrhichte V'ugel p. 25. tab. 10 (1784. — " die Gegend am 

 Orenokoflusse bey Kuinana "). 



Ilab. Venezuela : Nericagna and Munduapo on the R. Orinoco (t'herrie) ; 

 La Pricion and Nicare, Caura R. (Andre). Brit. Guiana : Rio Takutu (Whitely). 

 N.W. Brazil : Marabitanas, upper Rio Negro (Natterer). Eastern Colombia : 

 Bogota coll. Eastern Ecuador: Sarayaru (Buckley), Coca, Rio Napo (Goodfellow & 

 Hamilton). Peru : Loretoyacu, R. Maranon (Bartlett) ; Chuchnrras, prov. Iluunuco 

 (Hoffmanns) ; Cosnipata, dep. Cuzco (Whitely). 



i ad. General colour bronze-green. Naked jjortions on throat and foreneck, 

 including wattle, slate-blackish (in life " azure-bluish or indigo blue, shading 

 into slate-black on Ljwer part of throat and on wattle " — Cherrie, Goodfellow, 

 Hoffmanns). 



Wattle large, rounded, resembling a dewlaii, and joined to the throat for the 

 whole of its length. 



? and juv. (?). Like the male, but the wattle wanting or very little 

 developed. 



N.B. — I have not been able to make out whether the development of the 

 wattle depends on sex, age, or season. The six sexed females (Orinoco, Caura, 

 Takutu River, and Chnchurras) have a very small wattle or none at all, but several 

 males in perfect plumage, for instance, one from Coca, Rio Napo, and three from 

 the Caura River, show no trace of it either. A male in change of plumage 

 (Marabitanas — Natterer coll.) has just a slight indication of a shallow fold on 

 the middle of the lower throat. 



Specimens examined : 



Tring Museum: 3 c?c?, 2 ? ? Orinoco, 5 c?(J, 1 ?, Caura, Venezuela ; 2 ? ?, 

 Rio Takutu, Brit. Guiana ; 1 S, Coca, Rio Napo ; 1 ? , Chuchnrras ; 1 <?, Loretoyacu ; 

 1 ad., Tocache, N. Peru (Baer). 



British Museum : 3 Bogota skins (not sexed), 2 Sarayaru (not sexed), 1 Brit. 

 Gniana (not sexed) ; 1 cj, 1 ?, Takutu R. ; 1 (not sexed), Cosnipata. 



Vienna Museum : 1 (not sexed) Maynas, N. Peru (Poeppig), 1 cj jr. 

 Blarabitanas (Natterer). 



(J)) P. cumanensis nattereri Reichb. 



Ilah. Central Brazil. — Eastern Mattogrosso : Nas Frechas, near Cuyaba, 

 Saugradouro (Natterer). Goyaz : Rio Araguaya (Baer). North Brazil ; Manaquori, 

 Rio Solimoes (Natterer). 



