284 BROOKLYN INSTITUTE MUSEUM. SCIENCE BULLETIN 2. 6. 



Myrmotherula haematonota (Sclater). 



Formicivora haematonota Sclater, P. Z. S., 1857, p. 48. 

 Myrmotherula pyrrhonota Scl. & Salv. Nomencl. Av. Neotr. 1873. pp. 



72, 160; Berlepsch & Hartert, p. 73. 

 Myrmotherula haematonota Hellmayr Novit. Zool. XIV: 1907: 71, 72 



(Orinoco & Caura). 



Abundant on the upper Orinoco, above the second falls. 



Not observed elsewhere. Also recorded from Suapure, Nicare 

 and La Pricion on the Caura River. 



In the American Museum collection are specimens collected by 

 Klages on the Caura River at Suapure and La Union during Sep- 

 tember and October. 



Myrmotherula longipennis Pelzeln. 



Myrmotherula longipennis Pelz., Zur. Orn. Bras. II. 1868. pp. 82, 153; 



Berlepsch & Hartert, p. 74. 



Recorded from Suapure, Nicare, I^a Union and La Pricion on 

 the Caura River, but not observed along the Orinoco. 



Myrmotherula cinerEiventris cinereiventris Sclater & Salvin. 



Myrmotherula cinereiventris Scl. & Salv., P. Z. S. 1867 p. 756 (Ca- 

 yenne). 



Specimen of M. cinereiventris in the American Museum collection 

 from points in the Caura region (La Union, and Mato River) belong to 

 the typical race and are conspicuously darker than is the Upper Ori- 

 noco race. 



Myrmotherula cinereiventris pallida Berlepsch & Hartert. 



Myrmotherula cinereiventris pallida Berlepsch & Hartert, Novit. Zool. 



IX. 1902. p. 74. (Type, Nericagua, Orinoco River, Venez.). 



The writer collected the type of this subspecies at Nericagua on 

 the upper Orinoco beyond the falls of Maipures, 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. 



