Mr. P. L. Sclater on new species of Birds. 147 



as the upper coverts close to the bend varied with white. Besides, 

 the bill is much shorter and stouter, and the whole bird is smaller 

 in its dimensions. Of T. immaculatus I make the corresponding 

 measurements : — Long, tota 7*0, alee 3*3, caudse 3*0, rostri a rictu 

 1*0, tarsi 1*3. 

 Thamnophiltjs capitalis. 



S • Cinereus, alis intus obscurioribus ; pileo nigro : subtus dilu- 

 tior, tectricibus subalaribus et maryinibus remigum interioribus 

 ochracescenti-albidis : cauda nigricante : rostro et pedibus 

 plumb eo-nigris. 

 2 . Vmbrino-brunneus ; pileo rufo ; subtus dilutior, gula albican- 

 tiore : rostro pedibusque plumbeis, illius mandibula inferiore 

 pallidiore. 

 Long, tota 5*7, ala3 2*5, caudse 2*0, tarsi *75. 

 This Thamnophilus belongs to the typical division of the group 

 which contains T. ncevius and its allies. It is easily distinguishable 

 by its uniform cinereous plumage and black head, and by the absence 

 of all markings on the wings and tail. M. Verreaux's collection 

 contains a male not quite adult and two females of this species. 



Dysithamnus leucostictus. 



Supra umbrino-brunneus, pileo rufescentiore, pennis omnibus in- 

 terne cinereis : subtus cinereus, capitis lateribus cum gula et 

 pectore guttis elongatis albis, pennas medias occupantibus, ma- 

 culatis: ventris lateribus et crisso olivaceo tinctis : cauda ob- 

 scure nigra, extus brunneo marginata : rostro et pedibus nigris. 

 Long, tota 5*2, alse 2*75, caudse 2*0, tarsi 1*85. 

 This species is noticeable on account of the clear white elongated 

 shaft-spots on the throat and breast, which distinguish it from other 

 birds of the group. In two younger specimens in MM. Verreaux's 

 collection these spots are hardly yet apparent, and the rich brown 

 edging of the upper plumage is only partly assumed, leaving these 

 parts of a brownish cinereous. 



Pyriglena serva. 



<3 . Nigra, subtus magis ardesiaca : macula magna interscapular 

 rium interna et tectricum alarium superiorum marginibus apica- 

 libus cum campterio albis ; rostro et pedibus nigris. 

 $ . Olivascenti-cinerea, macula interscapularium interna alba : 

 subtus saturate ferruginea ; alis caudaque fuscis, tectricum 

 alarium superiorum marginibus et tectricibus subalaribus rufes- 

 centibus ; rostro superiore nigro, inferiore flavido : pedibus 

 fuscis. 

 Long, tota 5*3, alse 2*5, caudse 2*3, rostri a rictu 0*8, tarsi 0*9. 

 Distinguished from Pyriglena domicella and P. atra by its smaller 

 size. Sir William Jardine recently lent me some specimens of For- 

 micariidcB from Quixos, among which were examples of both sexes of 

 this same species. I do not know Lanius funebris, Licht. (Doubl. 

 p. 47), from Cayenne, but as far as 1 can judge from his short cha- 

 racters, it can hardly be identical with the present bird. 



