Descriptions of New Species of American Birds. 469 



grayish white ; the tail is black, marked with ten narrow white 

 bars on each web, reaching almost to the shaft ; the outer webs of 

 the quills are black with white spots, the inner webs are smoky 

 black with grayish white bars ; some of the outer primaries and 

 most of the secondaries have their outer webs bright rufous, which 

 probably is an indication that the specimen is not quite adult; 

 upper mandible black, the under dark horn color ; feet black. 



Length 6£ in.; wing 3 T V; tail 2ft; bill -^5 tarsi £. 



Habitat. — Ecuador, Napo River. 



R( marls. — This species belongs to the group represented by 

 T. doliatus, but I think is quite distinct from that and all its 

 allies. The transverse lines are narrow, and more clearly 

 defined than in any of the others. 



6. Thaiimopliilais nigresceiis. 



Male. Intense black, the feathers of the crest largely white at 

 the base, it is marked both above and below with rather narrow 

 transverse white bars, the throat and sides of the head have longi- 

 tudinal white markings, these are quite small on the cheeks; the 

 quill-feathers and tail are black, marked with roundish white spots, 

 six pairs are on every feather of the latter, occupying each web ; 

 bill and feet black. 



Length 6 in.; wing 2$ ; tail 2| ; tarsi 1 ; bill f. 

 The female closely resembles those of the allied species, but is of 

 a darker rufous below. 



Sab itat. — Ve nezuela. 



MemarTcs. — Two specimens of the male and one of the female, 

 were placed in my hands for examination by my friend Mr. 

 John Cassin. 



This species also belongs to the same group as the preced- 

 ing, but strikingly differs in its much blacker appearance, 



MAY, 186T. 34 Ann. Ltc. Nat. Hist. Vol. VIH. 



