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



(602) Accipiter ventralis Scl. 



Acdpiter ventralis Scl., P. Z. S., 1866, p. 303 ("In Nova Granada interior"); 

 Scl. & Salv., P. Z. S., 1879, p. 541 (Retire; Concordia; Medellin; Remedios). 



San Antonio, 1; Barro Blanco, 1; Andalucia (3000 ft.), 1; Fomeque, 1. 



(606) Accipiter bicolor ( Vieill.). 



Sparvius bicolor Vieill., Nouv. Diet. d'Hist. Nat., X, 1817, p. 325 (Cayenne). 



Accipiter bicolor Scl. & Salv., P. Z. S., 1879, p. 540 (Remedios); Allen, Bull. 

 A. M. N. H., XIII, 1900, p. 130 (Bonda; Onaca; Santa Marta). 



Accipiter bicolor schistochlamys Hellm., Bull. B. O. C, XVI, 1906, p. 82 (Nane- 

 gal, w. Ecuador). 



An adult female from Popayan agrees with Hellmayr's description in 

 being "much darker" below than true bicolor, but an adult male from 

 Buenaventura agrees in color with one from Purificacion, on the upper Mag- 

 dalena River, and another from Florencia; whereas one would expect the 

 reverse to occur. Hellmayr refers Panama specimens to schistochlamys, 

 but an adult female from Panama is somewhat lighter below than a Bogota 

 skin in our collection. The palest specimen in our collection is from Mata- 

 galpa, Nicaragua, while two other Nicaraguan specimens are similar to one 

 from Florencia. Our limited material, therefore, does not confirm the 

 racial validity of schistochlamys. 



'Popayan, 1; Purificacion, 1; Florencia, 1. 



(610a) Tachytriorchis albicaudatus exiguus Chapm. 



Tachytriorchis albicaudatus exiguus Chapm., Bull. A. M. N. H., Vol. XXXIV, 

 1915, p. 637 (Barrigon, Col.). 



Char, subsp. — Closely resembling T. a. sennetti (Allen) but notably smaller with 

 the upperparts, particularly the head and sides of the neck, darker and more slaty. 



Evidently occupies the llanos of eastern Colombia and eastward into 

 Venezuela. 

 Barrigon, 1. 



(617) Buteo hypospodius Gumey. 



Buteo hypospodius Gurney, Ibis, 1876, p. 73, pi. iii (MedeUin); Scl. & Salv., 

 P. Z. S., 1879, p. 540 (Medellin). 



