CHERRIE : ORNITHOLOGY 01^ THE ORINOCO REGION. 249 



Manacus manacus INTERIOR Chapman. 

 Manacus manacus interior Chapman, Bull. A. M. Nat. Hist. XXXIII ; 



1914; p. 624-625. (Type ex Villavicencio, Colombia.) — Maripa 



(Caura Riv.). 

 Chiromachaeris manacus Berlepsch & Hartert, p. 53. 



A young male taken December 24th, 1898, at Maipures, at the 

 second falls on the river is the only record I have for this species. The 

 American Museum contains a series from Maripa, on the Caura. 



Machaeropterus pyrocephalus (Sclater). 

 Pipra pyrocephala Scl., Rev. Zool. 1852. p. 9. 

 Machaeropterus pyrocephalus Berlepsch & Hartert, p. 54. 



Not observed on the Orinoco. Berlepsch and Hartert report speci- 

 mens from La Pricion on the Caura River. 



Scotothorus turdinus amazonum (Sclater). 

 Heteropclma amazonum Sclater, P. Z. S. i860, p. 466 (Chamicuros). 

 Scotothorus amazonum Berlepsch & Hartert, p. 54 (Nericagua, 



Munduapo, Orinoco River). 

 Scotothorus turdinus amazonum Hellmayr, Novit. Zool., XVII, 1910, 



p. 310. 



Seen only in the thick forest on the upper river at Munduapo and 

 Nericagua. 



Scotothorus turdinus olivaceus Ridgway. 



Scotothorus olivaceus Ridgway, Proc. Biol. Soc, Wash., XIX. 1906. p. 

 118 (Type, Rio Mato, near its mouth, on the Caura River, Vene- 

 zuela, in collection Am. Mus.). 



Scotothorus wallacei Berlepsch & Hartert, p. 54 (Nicare and La 

 Pricion, Caura River, Venezuela). 



Scotothorus amazonum waUacii Hellmayr, Novit. Zool., XIII. 1906, pp. 

 363-4 (Caura River, Venezuela). 



S[cotothorus] t[urdinus] olivaceus Hellmayr, Novit. Zool., XVII., 

 1910, p. 31. 

 Not noted on the Orinoco proper, but reported by Berlepsch and 



Hartert from the Caura River. 



Heterocercus flavivertex Pelzeln. 

 Heteroccrus flavivertex Pelz, Orn. Bras., 1870. pp. 125, 186; Ber- 

 lepsch & Hartert, p. 54. 



