CHERRIE: ORNITHOI.OGY OF THE ORINOCO REGION. 249 
Manacus manacus INTERIOR Chapman. 
Ma)WCHs 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 Aluseum contains a series from Maripa, on the Caura. 
Mach.^eropterus pyrocephaeus (Sclater). 
Pipra pyroccphala Scl., Rev. Zool. 1852. p. 9. 
Machaeroptcrus pyrocephalus Berlepsch & Hartert, p. 54. 
Not obsen'ed 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, \'ene- 
zuela, in collection Am. Mus.). 
Scotothorus wallacei Berlepsch & Hartert, p. 54 ( Nicare and La 
Pricion, Caura River, Venezuela). 
Scotothorus amazonum zvallacii Hellmayr, Novit. Zool., XIII. 1906, pp. 
363-4 (Caura River, Venezuela). 
S[cotothorus] t[urdinus] olivaceus Hellmayr, Novit. Zool., XVIL, 
1910, p. 31. 
Not noted on the Orinoco proper, but reported by Berlepsch and 
Hartert from the Caura River. 
Heterocercus flavivertex Pelzeln. 
Heteroccrus tiaz'iz'crtcx Pelz. Orn. Bras., 1870. pp. 125, 186; Ber- 
lepsch & Hartert, p. 54. 
