264 BROOKLYN INSTITUTE MUSEUM. SCIENCE BULLETIN 2. 6. 
Philydor rufipileatus consobrinus Sclater. 
Philydor consobrinus Scl. P. Z. S. 1870. p. 323 (BogotaJ. 
Philydor consobrinus rufipileatus Berlepsch & Hartert, Xo\it. Zool. IX 
1902. p. 61. 
Philydor rufipileatus consobrinus Hellmayr \'erli. Zool. — bot. Ges. W'ien. 
LIII. 1903. p. 220 (River Caura, Venez.). 
Recorded from the Caura River by Berlepsch and Hartert r.nd 
by Hellmayr. Not observed on the Orinoco proper. 
Xenops genib..\rbis Illiger. 
Xcuops genibarbis 111., Prodr. Orn. 181 1. p. 213; Berlepsch & Hartert, 
p. 62. 
Not noted until after passing above the falls of Atures ; common 
from that point onward. Specimens were collected at Alunduapo, 
Nericagua and Maipnres. 
Berlepsch and Hartert record specimens from La Union, Nicare 
and Suapure on the Caura River. 
MiCROXENOPS MiLLERi (Chapman). 
Microxenops milleri Chapman, Bull. Am. Mus. Nat. Hist. XXXHI : 
1914: 196 (Foot of Mt. Duida, L^pper Orinoco, Venez.). 
Type in collection of American Museum. 
DENDROCOLAPTIDAE— TPIE ^^^OODHE^VERS. 
Twenty-six species and subspecies were included in the Berlepsch 
and Hartert paper, twenty-three of which number were collected by 
the writer on the Orinoco proper and three received by the Tring 
Museum from points on the Caura River. 
As was to be expected, as with the Furnariidae. the greatest num- 
ber of species and of individuals was found in the heavily forested 
regions above the cataracts of Atures and Maipures. 
Key to the Genera. Species and Subspecies of Dendrocoloptidae. 
a. Nostrils narrow and elongated with a distinct operculum. 
b. Tips of rectrices strongly derurved. 
c. Bill wedge-shaped, tip of maxilla flattened (horizontally). 
d. Throat pale ochraceous-orange; brown of back less intense ap- 
proaching Dresden-brown Clyphorhynchu 
d'. Throat dark ochraceous-orange; brown of back more intense ap- 
proaching Brussels-brown Glyphorhynchits 
idnaudi. 
c'. Bill slender, not wedge-shaped, tip of maxilla pointed Sittasomus ama: 
