5*8 Mr. Such on some Brazilian Laniadce. 



T. (fem.) Capite cristate, dorso alts rectricibusque atris, albido- 

 fasaahs: torque nuchali corporeque subtus cineraceis. 

 Tab. Sup. f. 8. 

 Nucha obscure nigro-fasciata ; ceteris mari similis. 



These birds are the largest Thamnophili yet known, and they 

 exhibit a developement of the general characters of the genus to 

 the greatest extent. In the length and abrupt curvature of the 

 apex of their bills, they approach very near to Vanga, Cuv It is 

 with great pleasure that I seize the first opportunity of publicly ex- 

 pressing my gratitude to my friend Mr. Vigors for the liberal and 

 friendly instruction which I have received from him in my studies 

 in Natural History, by distinguishing this species by his name. 



Leachii. T. ater, capite, dorsoque albo-maculatis, remigibus 

 fulvo-subfasciatis ; guld, pectore, abdominis medio, rectri- 

 cibusque nigris ; abdominis lateribus uropygioque albo-fas- 

 ciatis. 



Rostrum pedesque nigri. Longitudo corporis 10|, rostri ad 

 f ron tern 1, ad rictum Ife tarsi II, 



&. Abdomine toto crissoque albo-fasciatis, rectricibus albo 

 sub-fasciatis. 



y. Multo minor. 



I have described the above three birds as varieties, although 

 from the circumstance of the species of the Thamnophili bearing°a 

 considerable approximation to each other in appearance, I con- 

 ceive that they may at some future time be found distinct. I had 

 not an opportunity of examining the sex of these birds; but I 

 have reason to suppose them to be females, having been informed 

 by the Brazilians that the male has a crest. Dr. Leach has de- 

 scribed a bird under the name of L. Imeatus, which bears some 

 resemblance to the present species ; but which may at once be 

 distinguished from it by the white markings forming slender/<w««> 

 instead of spots. I have named this species after the above cele- 

 brated Naturalist, whose attention to this family entitles him to 



