CHERRIE: ORXITHOLOGY OF THE ORINOCO REGION'. l8l 
Tachvphonus luctuosus Lafresnaye & D'Orbigny. 
Tachyphonus luctuosus Lafr. & D'Orb., Syn. Av. in Mag. Zool. VII. 
1837. p. 29; Berlepsch & Hartert, p. 21. 
This species was not seen on the Orinoco proper, but Beebe took 
specimens at Guanoco in the delta region and I collected a single 
example I\Iay 26, 1907, at La Cascabel on the river San Feliz near its 
junction with the Ciichivero River. 
The Tring Museum received specimens from Suapure, La Pri- 
cion, Nicare and La Union on the Caura River. 
In the American Museum collection are specimens collected on 
the Caura River by Klages at El Llagual in March. Suapure in Janu- 
ary and La Union in October. 
In the La Cascabel specimen, an adult male, the eye was seal 
brown ; bill above black, sides of mandible slate grey, center of ridge of 
gonys black ; feet slate grey. 
T.ACHVPHONUS CRIST.XTUS CRIST.ATELLUS Sclatcr. 
Tachyphonus cristafcHus Sclater. Cat. Am. Birds. 1867. p. 86 (Type, 
Bogota). 
Tachyplionus cristatits Berlepsch & Hartert. p. 22. 
Tachyphonus cristalus cristatellus Hellmayr. Novit. Zool. XII. 1905. 
P- 275- 
The Tring Museum received specimens collected on the Caura 
River from both Andre and Klages ; and in the American Museum 
collection is a series collected by Klages at Suapure, and at La 
Union on the Caura River during the months of September, October 
and February. This series includes both males and females in adult 
plumage, and immature specimens in transitional plumage. A 
"female" taken at Suapure, September loth. is brownish olive above, 
washed with russet especially posteriorly, the rump being nearly pure 
russet ; forehead and sides of crown gre\'ish olive, centre of crown 
russet; wings and tail blackish; quills edged with mummy- brown: 
sides of face olive but feathers of lores .and auriculars with faint buffy 
shaft lines ; below, raw sienna with bufTy throat and under tail coverts 
ochraceous. An immature male taken at the same point is just 
assuming the plumage of the adult. The general color both above 
and below is black but interspersed with brownish olive feathers on 
the back and a few ochraceous ones below. The rectrices are all 
