Genus Thamnophilus, Vieillot. 237 



black cap, and the want of white spots on the inner barbs of 

 the rectrices, except in the middle pair. I confess M. Lesson's 

 description of his T. capistratus is somewhat too brief to en- 

 able one to assert, without fear of contradiction, that he in- 

 tended this species and no other ; but it is accurate enough as 

 far as it goes, and I think it better, therefore, to use his name 

 than to coin a new one. 



17. Thamnophilus radiatus, Vieill. 



Batara listado, Azara, No. 212. v. i., p. 196, unde. 

 Thamnophilus radiatus, Vieill. Nouv. Diet., iii. 315. Th. 



doliatus, d'Orb. Voy., p. 168; Gray's Gen., i.p. 297, (partim) ; 



Hartlaub. Ind. Az., p. 14. 



$ pileo cristato nigro ; supra niger albo trans-fasciatus ; 

 infra albus fasciis angustis magis distantibus, in ventre fere 

 evanescentibus, nigris ; gutture et crisso irregulariter albo 

 punctatis ; rectricibus omnibus et in utroque pogonio albo macu- 

 latis. Long, tota 6*3, alae 2*9, caudse 2*6. 



2 supra ferruginea, pileo intensiore ; infra pallide ochracea, 

 gutture et ventre medio albis : lateribus capitis et nucha 

 nigro dense striatis. 



Hab. Paraguay (Azara), Bolivia, Yungas, Santa Cruz de la 

 Sierra, Chiquitos and Moxos (d'Orb.) 



The preceding characters are taken from a pair of birds in 

 my collection, received from Bolivia. In comparing them 

 with the true "doHatus,^ we find the following differences: 

 Above, the crest is black, and wants the medial white vertical 

 band of the " doliatus," and the hinder part of the neck is 

 rather more mixed with white. Below, the plumage is much 

 whiter, the sides of head are striated with black, and there are 

 black points on the throat ; the black bands on the breast are 

 much narrower and wider apart, and grow obsolete on the belly, 

 the middle of which is almost white. The white spots on each 

 web of the tail-feathers are situated as in doliatus, but are 

 broader and squarer in form. In the female, the plumage 

 above agrees with doliatus $ ; below there are no striae on the 

 throat, but this and the middle of the belly are white ; the 

 breast and sides being pale creamy buff. 



NEW SERIES. VOL. I. NO. IT. APRIL 1855. R 



