1917.] Chapman, Distribution oj Bird-life in Colombia. 485 



Cali, agree in color, size, length of primaries and wing-formula. It is to 

 be noted that San Antonio is in the Subtropical Zone. There is, however, 

 a possibility of the specimen from this locality having been taken in the 

 Tropical Zone below the crest of the ridge known as San Antonio. In any 

 event, the bird is typical, showing'no approach to the long outer primaried 

 C. a. altera which occurs in the Choco Valley at the western base of the 

 Western Andes, a fact in distribution which, in connection with the nature 

 of the characters separating the two birds, suggests, in my opinion, their 

 specific distinctness. 



San Antonio, 1; Honda, 1; El Consuelo, 1. 



(3170a) Corapipo altera altera Hellm. 



Corapipo leucorrhoa altera Hellm., Bull. B. O. C, XVI, 1906, p. 84 (Carrillo, 

 Costa Rica). 



Two males taken by Mrs. Kerr in the Baudo Mts. (alt. 2500 and 3500 

 ft.), considerably extend the range of this species. They are smaller than 

 a male from Costa Rica (wing 56, tail 27, as compared with wing, 60; tail, 

 31.5 mm.) but agree with it in color and in wing-formula. 



Baudo Mts., 2. 



(3174) Manacus manacus abditivus Bangs. 



Manacus manacus abditivus Bangs, Proc. N. E. Zool. Club, I, 1899, p. 35 (Santa 

 Marta, Col.); Allen, Bull. A. M. N. H;., XIII, 1900, p. 155 (Bonda; Minca; Caca- 

 gualito; Donama; Masinga Vieja; Jordan). 



Chiromachceris manacus Sol. & Salv., P. Z. S., 1879, p. 517 (Remedios; NecM). 



Specimens from Antioquia have the long beard and wing characters of 

 abditiviis, of which we have a large topotypical series, but the abdominal 

 region is somewhat grayer and the white areas show a faint but unmistak- 

 able tint of yellow indicating an approach toward flawolus, with which, as 

 below stated, I believe this form intergrades. 



A specimen from Puerto Valdivia is the most western record for this 

 species in northern Colombia. Between this point and Barbacoas in south- 

 western Colombia it is unknown to occur. These Manakins inhabit rather 

 open, scrubby places where their buzzing flight quickly calls attention to 

 them, and their absence from collections made in western Colombia is 

 almost conclusive evidence that they are not found in this region. 



It may be suggested that Manacus vittellinus replaces Manacus manacus 

 ,in the region in question, but the occurrence of both forms at Puerto Val- 

 divia is of importance in this connection. It should be added, however, 



