292 BROOKLYN INSTITUTE MUSEUM. SCIENCE BULLETIN 2. 6. 



RAMPHOCAENUS MELANURUS TRINITATIS Lesson. 

 Ramphocaenus trinitatis Lesson, Rev. Zool. 1839. p. 42. 

 Ramphocaenus melanurus Berlepsch & Hartert, p. 79. 



Rare on the Orinoco; two collected at Munduapo in February 

 and one at Nericagua in April. Berlepsch and Hartert record it from 

 the Caura River, and in the American Museum collection are speci- 

 mens taken by S. M. Klages at Suapure and at Maripa on that river. 



FORMICARIUS COLMA coLMA Boddaert. 

 Formicarius colma Bodd., Tabl. PI. Enl. 1783. p. 44. 

 Formicarius nigrifrons Berlepsch & Hartert, p. 80. 



Rare, two taken at Nericagua during March and April. A nest 

 of this species, from which the parent was flushed, was found at 

 Nericagua in March, 1899. It was a natural cavity in a tree trunk, 

 about 5 metres from the ground. The cavity was about 40 cm. in 

 depth and about 15 cm. in diameter. The bottom was lined with 

 rootlets and dry grasses. The two eggs were pure white. 



Recorded also from points on the Caura River by Berlepsch and 

 Hartert. 



In the American Museum collection are four specimens, one from 

 El Llagual, and three from La Union, Caura River. These skins, 

 three of which are labelled as females, indicate that the adult female 

 is exactly similar to the adult males, i. e., without any white on chin 

 or throat 1 . One of the examples before me has the extreme upper 

 throat and chin white and the throat flecked with white ; another has 

 a small chin spot only white, while the third is without any white. 



An examination of Mr. Ridgway's type of F. nigrifrons glaucopec- 

 tus 2 from British Guiana with the other examples of the same from the 

 American Museum collection, compared with the Caura River speci- 

 mens, indicates that glaucopectus is a well marked subspecies dis- 

 tinguished by the great extension of sooty blackish down over the chest 

 and even onto the sides. 



FORMICARIUS RUFICEPS (Spix). 

 Myiothera ruficeps Spix, Av. Bras. i. p. 72, pi. 72 fig. I, (1824). 



A single specimen in the American Museum collection, taken by 

 Klages at La Union, Caura River, Venez., evidently belongs to this 



'Hellmayr, Novit. Zool. XII. 1905. 292, believed the throat of adult female to be white "sharply 

 defined against the sooty grey breast. " 



*Proc. U. S. N. M. XVI. 1893. p. 673. 



