CHERRIE: ORNITHOLOGY OF THE ORINOCO REGION. I47 
I believe the nests of this wren. Hke those of H. griseus always 
have as a foundation the abandoned, and frequently half-decayed nests 
of either Pitangus or some species of Myioaetetes. 
The eggs are elongated-ovate in shape and a delicate pure white in 
color. 
Henicorhlna leucosticta (Cabanis). 
Cyphorhinus leucostictus Cab., Orn. Not. in Arch. Naturg. XIII. 1847. 
p. 206. 
Henicorhina leucosticta Berlepsch & Hartert, p. 5. 
Andre collected specimens of this wren on the Caura River. 
MicRocERCULus CAURENSis Berlepsch & Hartert. 
Microcerculus caurensis Berlepsch & Hartert, Novit. Zool. IX. 1902. p. 5. 
A single specimen of this wren, said by its describers to be 
"closely allied to M. bambla from Guiana" was collected by Andre at 
Nicare on the Caura River. 
Thrvophii.us albipectus albipectus Cabanis. 
Thryophilus albipectus Cab. in Schomb. Reise Brit. Guiana, HI. 1848. 
p. 673 (Cayenne) ; Berlepsch & Hartert, p. 6 (Suapure, La Pricion, 
La Union and Nicare, Caura River). 
In the Brooklyn Museum collection and that of the American 
Museum of Natural History, the writer has had for study Venezu- 
elan specimens from localities in the Orinoco region as follows : — On 
the Orinoco proper; Nericagua, Munduapo, Caicara, Cindad Bolivar, 
Agua Salada de Ciudad Bolivar and Las Barrancas ; La Cascabel (on 
the River San Feliz near its junction with the River Cuchivero) ; 
Mato River (near its junction with the Caura River) ; Maripa and 
La Union on the Caura River. Typical examples of three forms are 
represented, together with specimens that are intermediate in char- 
acter. 
Specimens collected by the writer at "La Cascabel" compared 
with an example of typical albipectus from Cayenne (No. 668 Cherrie 
and Gault Coll.) in the American Museum collection, agree almost 
exactly in color both above and below, but lack the faint traces 
of dusky bars on the back that are to be seen in that specimen. The 
American Museum series from Maripa and a single example among 
those labeled "La Union" (Klages Coll.) are referable to this form. 
Typical examples have been also recorded from Saupure, La Pricion, 
