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



twelve specimens of castelnaudi in having the feathers of the throat ochra- 

 ceous-bufE rather than cinnamon-rufous and, as a rule, with more evident 

 blackish margins. Two specimens from Gallera (5700 ft.) in the Subtropi- 

 cal Zone, are more olivaceous below and less rufous above than those from 

 the coast region. 



Alto Bonito, 3; Choco, 1; Salaqui, 1; Noanama, 1; San Jose, 2; Gal- 

 lera, 2; Cocal, 1; Barbacoas, 4; Buenavista, Narifio, 2; Puerto Valdi via, 1. 



--" (2519) Dendrocincla tyrannina tyrannina (iofr.). 



Dendrocops tyranninus Lafh., Rev. Zool., 1851, p. 328 (Bogota,). 

 Dendrocinda tyrannina Sol. & Salv., P. Z. S., 1879, p. 523 (Sta. Elena). 



Found by us in the Temperate Zone of the Western and Central Andes 

 and in the upper part of the Subtropical Zone of the last-named range. 

 Six specimens are less rufous than an old Bogota skin, a difference doubt- 

 less due to fading of the Bogota bird. 



Cerro Munchique, 1 ; Almaguer, 1; Salento, 1; Laguneta, 1; El Eden, 1. 



(2521) Dendrocinda lafresnayei lafresnayei Ridgw. 



Dendrocinda lafresnayei Ridgw., Proc. U. S. N. M., X, 1887, p. 492 ("Upper 

 Amazon?" — locality doubtless incorrect; Hellmayr substitutes "Colombia" — 

 I suggest adding Valparaiso, Santa Marta). 



Dendrocinda olivacea lafresnayi Allen, BuU. A. M. N. H., XIII, 1900, p. 156 

 (Mjnca; Onaca; Las Nubes; Valparaiso; Palomina; Chirua; La Concepcion; 

 Santa Marta). 



Dendrocinda mervloides lafresnayei Hellm., P. Z. S., 1911, p. 1155 (Noanarod; 

 Sipi). 



Dendrocinda lafresnayei inhabits the Tropical Zone of Colombia west 

 of the Eastern Andes. Specimens from the Cauca Valley (Rio Frio) agree 

 with one from Honda and with seven from Santa Marta, but four speci- 

 mens from the Pacific coast (Novita to Barbacoas) are perceptibly darker 

 both above and below. Nine specimens from western Ecuador (Manavi) 

 agree with Santa Marta specimens in color, but have the bill blacker; a 

 difference due, in part, but not wholly to the fact that they were collected 

 more recently. 



Possibly the variations exhibited by these twenty-two specimens may 

 be in a measure racial, but I see nothing to be gained by applying names to 

 differences so minute that their subsequent application becomes largely 

 a matter of opinion. I have, for example, a specimen of this species from 

 Panama which can be matched by several specimens in the series under 



