432 Bulletin American Museum of Natural History. [Vol. XXXVI, 



Our three specimens are evidently far from representing the range of 

 this species, in Western Colombia, but it seems nevertheless to be wanting 

 in the Cauca Valley. 



Turbaco, 2; Calamar, 1. 



(2714) Copurus colonus fuscicapillus Scl. 



Copurus fuscicapillus Scl., P. Z. S., 1861, p. 381 ("Bogotd" I suggest Villavi- 

 cencio). 



Found only in the Tropical Zone at the eastern base of the Eastern 

 Andes. 



Buena Vista, 3 ; Villavicencio, 4. 



(2715) Copurus leuconotus Lafr. 



Copurus leuconotus Lafk., Rev. Zool., 1842, p. 335 ("Habitat in Bolivia'' — 

 errore; Hellmayr "substitutes Bogotd, Colombia," I emend to Honda, Colombia); 

 Wyatt, Ibis, 1871, p. 332 (Bucaramanga to Magdalena River up to 3000 ft.); Scl. 

 & Salv., p. Z. S., 1879, p. 511 (Remedios); Hellm., Ibid. 1911, p. 1125 (Guineo; 

 Noanamd; N6vita). 



An inhabitant chiefly of the Tropical Zone occurring in the Choco, on the 

 Pacific coast, and in the upper Magdalena Valley, but we have not taken 

 it in the Cauca Valley. At the eastern base of the Andes it is replaced by 

 C. c. fuscicapillus. 



Alto Bonito, 3; Novita, 2; Noanama, 1; San Jose, 4; Los Cisneros, 3; 

 Cerro Munchique (alt. 6000 ft.), 2; Barbacoas, 4; Buenavista, Narino, 1; 

 Puerto Valdivia, 1 ; Puerto Berrio, I ; Honda, 5. 



(2717) Machetornis rixosus flavigularis Todd. 



Ma:hetornis rixosus flavigularis Todd, Ann. Cam. Mus., VIII, 1912, p. 210 

 (Tocuyo, Venezuela). 



Machetornis rixosus Allen, Bull. A. M. N. H., XIII, 1900, p. 151 (Cacagualito). 



This is a bird of the open country which ascends the Magdalena Valley 

 to at least the southern limit of the arid coastal strip, and is also found on 

 the llanos at Villavicencio. 



La Playa, 3; lower Magdalena, 1; Villavicencio, 1. 



1 (2719a) Muscisaxicola alpina Columbiana Chapm. 



Muscisaxicola alpina colurrMana Chapm., Bull. A. M. N. H., XXXI, 1912, p. 152 

 {Paramo of Santa Isabel, Cen. Andes, CoL). 



Char, subsp. — Similar, to Muscisaxicola alpina alpina (Jard.) but averaging 

 slightly smaller, the upperparts darker, more fuscous, the breast grayer. 



