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



(3057a) Mitrephanes berlepschi eminulus Nels. 



Mitrephanes eminulus Nels., Smith. Misc. Coll., LX, No. 3, 1912, p. 13 (Cana, 

 e. Panama). 



• After comparison with five essentially topotypical specimens of eminulus, 

 from Tacarcuna, eastern Panama, I refer to that form a specimen from 

 Monquido, a station in the Atrato Valley visited by Mrs. Kerr which I 

 have not been able to locate, and a fully adult male from Alto Bonito on 

 the western slope of the Western Andes above this valley. The first-named 

 specimen has somewhat less fulvous on the breast than the Panama speci- 

 mens, and in the Alto Bonito bird there is a still further reduction of this 

 color, the breast being largely olive, while the abdomen is a brighter yellow. 

 I have no doubt that this bird is separable from eminulus, but in the ab- 

 sence of specimens of the western Ecuador form, berlepschi, of which emi- 

 nulus appears to be merely a race, I provisionally refer it to the Panama 

 form. 



The affinities of this species appear to me to be with M. aurantiiventris 

 of western Panama and Costa Rica, which differs chiefly through an in- 

 crease in the intensity and extent of the fulvous coloring, rather than with 

 M. olivaceus of eastern Peru, a much larger bird with olivaceous breast 

 and abdomen. 



Monquido, Choco, 1; ? Alto Bonito, 1. 



(3058) Sayornis nigricans cineracea (Lafr.). 



Tyrannula cineracea Lafr., Rev. ZooL, 1848, p. 7 (Caracas, Venezuela). 



Sayornis ardosiacus Cass., Proc. Acad. N. S. Phila., 1860, p. 144 (Truando). 



Sayornis cineracea Wyatt, Ibis, 1871, p. 332 (Ocana; Cocuta Valley); Scl. & 

 Salv., p. Z. S:, 1879, p. 511 (Medellin; Frontino); Allen, Bull. A. M. N. H., XIII, 

 1900, p. 151 (Cacagualito; Onaca). 



Sayornis nigricans Stone, Proc. Acad. N. S. Phila., 1899, p. 306 (Ibagtie). 



Sayornis cineracea cineracea Hellm., P. Z. S., 1911, p. 1125 (Pueblo Rico). 



An inhabitant of the Tropical Zone but working up the streams to the 

 lower border of the Subtropics. It appears to be locally distributed through- 

 out the greater part of tropical Colombia, though we have taken no speci- 

 mens in the Cauca Valley. The smallest birds come from the eastern slope 

 of the Eastern Andes, the largest from the Pacific Coast. 



San Jose, 1; Los Cisneros, 2; Caldas, 1; Salento, 2; Rio Toch€, 4; 

 near San Agustin, 1 ; w. slope below Andalucia (alt. 3000 ft.), 8; Quetame, 7. 



