284 BROOKLYN INSTITUTE MUSEUM. SCIENCE BULLETIN 2. 6. 
Myrmotherula iiaematonota (Sclater). 
Foniiiciz'ora Iiaematonota Sclater. P. Z. S., 1857, p. 48. 
Myrmotherula pyrrhonota Scl. & Salw Xomencl. Av. Neotr. 1873. pp. 
72, 160; Berlepsch & Hartert, p. yT,. 
Myrmotherula hacmatonota Hellmayr Novit. Zool. XI\' : 1907: 71. 72 
(Orinoco & Caura). 
Al>undant on the npper Orinoco, above the second falls. 
Not observed elsewhere. Also recorded from Suapure, Xicare 
and La Pricion on the Caura River. 
In the American Museum collection are specimens collected by 
Klag-es on the Caura River at Suapure and La Union during Sep- 
tember and October. 
Myrmotherula longipEnnis Pelzeln. 
Myrmotherula loinjipciiiiis Pelz., Zur. CJrn. Bras. IL 1868. pp. 82, 153; 
Berlepsch & Hartert, p. 74. 
Recorded from Suapure, Xicare, La Union and La Pricion on 
the Caura River, but not observed alonsf the Orinoco. 
Myrmotherula cinereiventris cinereiventris Sclater & Salvin. 
Myrmotherula cinereiventris Scl. & Salv., P. Z. S. 1867 p. 756 (Ca- 
yenne). 
Specimen of 71/. cinereiventris in the American Museum collection 
from points in the Caura region (La Union, and Mate River) belong to 
the typical race and are conspicuously darker than is the Upper Ori- 
noco race. 
Myrmotherula cinereiventris pallida Berlepsch & Hartert. 
Myr)notlierula eiiicreiz'cntris pallida Berlepsch & Hartert, Novit. Zool. 
IX. 1902. p. 74. (Type. Xcricagua. Orinoco River, V^enez.). 
The writer collected the type of this subspecies at Nericagua on 
the upper Orinoco beyond the falls of ]\Iaipures, a short distance 
above the mouth of the Vicada River. The subspecies was abundant 
all along the Orinoco from near the mouth of the Meta River as far 
as I ascended. Specimens in the American Museum collection from the 
foot of Mount Duida belong to this race. 
