DESCRIPTION OF TWO SUPPOSED NEW FORMS OF THAM- 



NOPHILUS. 



BY 



Robert Ridgvvay, 



Curator of the Department of Birds. 

 1. Thamnophilus albicrissus, hji. iiov. 



Sp. char. : Resembling T. major, Vieill., but remiges entirely with- 

 out white edgings, white bars on tail much smaller, black beneath eyes 

 much broader, and bill much stouter. 



Habitat: Trinidad? (Type, No. 85497, U. S. National Museum; 

 from Southwick and Jencks.) 



Tills is evidently a very distinct bird from T. major, and is re])re- 

 sented in the collection by an adult male and two females, of uncertain 

 locality, but all of the same "make," which conforms exactly to that 

 of skins from Trinidad. The male is not quite in perfect plumage, the 

 greater wing coverts, though deep black in color, being narrowly tipi)cd 

 with light fulvous. In the adult male of T. major these feathers are 

 not only broadly tii)ped with pure white, but this color follows the edge 

 of the feathers a considerable distance. 



From T. mcJanurus (Jould, whifh I have not seen, this species seems 

 to differ in the s])otted tail and smaller size, the wing especially being 

 considerably shorter (3.40 instead of 3.S0 inches). 



2. Thamnophilus tiinitatis, ep. nov. 



Sr. CIIAR. : Most like T. cirrhaius (Gmel.), but back much deei)er and 

 darker brown, black of under parts much more extensive, sides and 

 Hanks much darker gray, and white edgings to rectrices much less 

 distinct. 



Habitat: Island of Trinidad. (Type, No. 32848, U. S. National 

 Museum, Trinidad; Verreaux.) 



In the color of the back this bird resembles T. 2}ulc/i<llus,Cu.h. and 

 Heine, nuu-h more closely than 7'. eirrhatusj but the color is even a 

 darker brown, which, however, does not extend over the rumj) as it 

 does in T. 2)>(leheUus. It lacks the brown of the sides and Hanks as 

 well as the white head-markings, in these respects agreeing with T. 

 puhhellus. 



481 



I'lDcconins'* National Muaenni, Vol. XIV— No. 871. 



Troc. N. ]M. 01 31 



