CHERRIE: ORNITHOLOGY OF THE ORINOCO REGION. 315 



this Species was observed everywhere from Las Barrancas and Ciudad 

 Bolivar as far as I worked on the upper river. 



Adult female, eye clay color; bill, ridge of culmen clove brown, 

 cutting edge of maxilla cinnamon brown, mandible brown. 



Neomorphus RuFiPENNis (Gray). 

 Cultrides rufipennis Gray, P. Z. S. 1849: p. 63. pi. 10 (Guiana). 



Two specimens from the Caura River are in the American Museum 

 Collection. 



Neomorphus nigrogularis Chapman. 

 Neomorphus nigrogularis Chapman, Bull. Am. Nat. Hist. XXXIII : 

 1914: p. 194 (Foot of Mt. Duida, Venezuela). 

 Type in the collection of the American Museum. 



Crotophaga ani Linnaeus. 

 Crotophaga ani L., Syst. Nat. ed. 10. 1758. p. 105; Berlepsch, Ibis, 1884. 



p. 435 (Angostura) ; Berlepsch & Hartert, p. 98. 



Native name Tio Louis. Common along the middle stretches of 

 the river from Ciudad Bolivar and Caicara beyond the falls of Mai- 

 pures as far as I extended my explorations. 



Eye seal brown ; bill and feet black. 



Crotophaga sulcirostris Swainson. 

 Crotophaga sulcirostris Swainson, Philos. Mag. New & Unit. Ser. I : 



(1827) : 440 (Mexico) : Berlepsch & Hartert, p. 98. 



The three species of Crotophaga seem to be found throughout the 

 Orinoco region. Of the two smaller forms C. ani is the more abun- 

 dant. I did not observe sulcirostris above the falls, but Miller collected 

 a specimen for the American Museum at Maipures. 



Crotophaga major Gmelin. 

 Crotophaga major Gm., Syst. Nat. ed. 10. 1788. p. 363; Berlepsch & 



Hartert, p. 98. 



Native name Hervidor Oriquelo. Not observed below Ciudad 

 Bolivar, but noted at almost all points visited beyond. This species 

 frequents the tangled thickets and densely wooded areas that cover 

 or border swamps, ponds or water courses. Like other members of 

 the genus they are social, going about in small flocks of from six or 

 eight to twenty or thirty. 



