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



and western Ecuiador, form a small and distinct group, distinguished mainly 

 by its jet black head, wholly black or blackish, not basally olive-brown, 

 black-tipped, tail, etc. It is probable that both have a common origin bdt 

 one appears to have entered Central America from the east, the other from 

 the south. The discovery of a form {Formicarius analis cohnectens) at 

 the foot of the Eastern Andes in Colombia, to some extent bridges the gap 

 between the Bolivian analis and the northern saturatus. We have also a 

 specimen from Zamora in southeastern Ecuador which in the blackness of 

 its tail and breast approaches destructus; the head, however, is olivaceous 

 and the upperparts, while somewhat darker, are more as in connectens. 

 This specimen suggests the specific identity of the entire group, but the 

 impossibility of this Tropical Zone bird's crossing the Andes and the con- 

 sequent isolation of the black-headed type, together with the occurrence 

 of this type and another representative of the group in the same faunal 

 region, indicates their specific distinctness. 

 San Jose, 1. 



(2159) Formicarius analis saturatus Ridgw. 



Formicarius saturatus Ridgw., Proc. U. S. N. M., 1893, p. 677 (Trinidad). 

 Formicarius hoffmanni Scl. & Salv., P. Z. S., 1879, p. 526 (Remedios). 



Occurs in the Atrato, Cauca, and Magdalena Valleys. Our specimens 

 agree with eleven from Trinidad but have the under tail-coverts slightly 

 deeper, while the white loral spot, present in all the Trinidad birds, is ab- 

 sent in four of the Colombian specimens and barely distinguishable in the 

 other five. 



Upper Atrato, 1 ; Puerto Valdivia, 2 ; Rio Frio, 1 ; Malena, 3 ; Puerto 

 Berrio, 2. 



(2160a) Formicarius rufipectus carrikeri Chapm. 



Formicarius rufipectus carrikeri Chapm., Bull. A. M. N. H., XXXI, 1912, p. 146 

 (San Antonio, Col.). 



Formicarius rufipectus rufipectus Hellm., P. Z. S., 1911, p. 1174 (Pueblo Rico). 



Char, svbsp. — Similar to Formicarius rufipectus rufipectus Salv., but back, sides 

 and flanks pronouncedly grayer; wings somewhat grayer, breast paler, averaging 

 nearer orange-rufous than chestnut, as in rufipectus, the center of the abdotrun 

 much paler, ochraeeous rather than chestnut. 



Common in the Subtropical Zone of the Western and Central Andt.'s. 

 La Frijolera, 1; Salencio (Novita Trail), 1; San Antonio, 3; Andes w. 

 of Popayan (alt. 10340 ft.), 1; Miraflores, 6; Salento, 1. 



