5^8 Mr. Such on some Brazilian Laniadce. 



T. (fjem.) Capite cristato, dorso alts rectricibusque atris^ albido- 

 fasciatis : 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-maculaiis, remigibus 

 fulvo-subfasciutis ; gulu^ pectore^ abdominis medio^ rectri- 

 cibusque nigris ; abdominis lateribus uropygioque albo-fas- 

 ciatis. 



Rostrum pedesque nigri. Longitudo corporis 10|^, rostri ad 

 frontem 1, ad rictum 1^V» tarsi \\. 

 /3. Abdomine toto crissoque albo-fasciatisj rectricibus albo 

 sub -fasciatis. 



y. Multo minor, 



I have described tlie above three birds as varieties, although 

 from the circumstance of the species of the Thamnophili bearing a 

 considerable approximation to each other in appearance, 1 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. lineatus, which bears some 

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

 distinguished from it by the white markings forming slender fascia; 

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

 brated Naturalist, whose attention to this family entitles him to 



