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



(3964) Arremon aurantiirostris occidentalis Hellm. 



Arremon aurantiirostris occidentalis Hellm., P. Z. S., 1911, p. 1118 (Juntas, Rio 

 Tamand (type), and Condoto). 



Occupies the Tropical Zone of the Pacific Httoral but in places reaches 

 the Subtropical Zone. 



Munchique birds are decidedly larger than those from San Jose, which 

 may be considered essentially topotypical. 



Hellmayr (/. c.) has clearly characterized the races of this group. I agree 

 with him that intergradation between aurantiirostris and occidentalis is 

 wholly probable. Indeed, an excellent series from eastern Panama shows 

 an unmistakable approach toward occidentalis. 



Dabeiba, 4; Alto Bonito, 4; Novita Trail, 1600 ft., 1; Buenaventura, 1; 

 San Jose, 4; Munchique, 6000 ft., 2; Cocal, 4000 ft., 1; Barbacoas, 2; 

 Buenavista, 1200 ft., 1. 



(3967) Arremon axillaris Scl. 

 Arremon axillaris Scl., P. Z. S., 1854, p. 97 (Bogota). 

 Villavicencio, 2. 



(3971) Lysurus castaneiceps {Scl.). 



Buarremon castaneiceps Scl., P. Z. S., 1859, p. 441 (R. Napo, Ecuador); Scl. & 

 Salv., Ibid., 1879, p. 505 (Frontino). 



Taken only in the Subtropical Zone of the Western Andes. 

 Novita Trail (6000 ft.), 2: (3500 ft.), 1; Cocal, 1; GaUera, 2. 



(3971a) Atlapetes flaviceps Chapm. (Plate XL.) 



Atlapetes flaviceps Chapm., Bull. A. M. N. H., XXXI, 1912, p. 162 (Rio Toch^, 

 6800 ft.. Can. Andes, Col.). 



Char. sp. — An apparently very distinct species not closely related to any de- 

 scribed form of the genus; head and underparts yellow, back, wings, and tail olive- 

 green. 



Known only from two specimens taken at the type-locality. 

 Rio Toche, 2. 



