240 P. L. Sclater on the 



Long, tota 5-5, alae 2*4, caudas 2-2. 

 Hab. Brazil, Bahia (Sw.) ; Bolivia, Chiquitos (d'Orb.) 

 Collections from Bahia not unfrequently contain examples of 

 this species ; which, though so well marked, has been furnish- 

 ed with four or five different names by modern ornithologists. 



Subdiv. B. CRISTATI. 



23. Thamnophilus atricapillus, VieilL 

 Piegrieche hupee de Canada, Buff. PI. Enl. 479, fig. 2, unde. 

 Lanius canadensis, Lin. S. N., i. 134 ($) certe. L. atricapillus, 



Gm. S. N., i. 303. 

 Le Fourmillier huppe, Buff. H. N., iv. p. 476, unde. Turdus 



cirrhatus, Gm. S. N., i. p. 826. L. pileatus, Lath. Ind. 



Orn., i. p. 76. 

 Tyrannus atricapillus, VieilL Ois. de l'Am. Sept., pi. 48, p. 



78 ($), et. Tyr. canadensis, ib. p. 79, pi. 49 ($). 

 Thamnophilus cristatus, Max. Beit., iii. p. 1002. Th. 



cirrhatus, Schomb. Reise., iii. p. 687. 



£ cinereus ; dorso medio rufescenti-brunneo ; capite cristato, 

 toto cum gutture et pectore antico nigris ; alis caudaque nigris 

 albo limbatis. Long, tota 6-5, alse 2*9, caudae 2-5. 



$ crista rufa ; subtus ochraceo-alba ; gutture nigro striato ; 

 ventre medio albo. 



Hab. Trinidad (Sc.) ; British Guiana (Schomb.) ; Cayenne 

 (Sc.) ; South East Brazil, Bahia (Max.) 



The female of this well-known bush-shrike is certainly the 

 Lanius canadensis of Linne, a name which cannot be adopt- 

 ed on account of the error in locality. Whether Gmelin's 

 synonyms really refer to this species is a more doubtful mat- 

 ter ; Mr G. B. Gray applies one of them, which is used by 

 Cabanis as a name for this bird, to a species of Formicarius ; 

 and I have therefore thought it better to employ Vieillot's 

 (perhaps Gmelin's X) " atricapillus" as the first-given unobjec- 

 tionable name for this bird. It appears to range along the 

 eastern shores of South America, from Trinidad to South Brazil. 

 The next following species probably takes it place in the in- 

 terior of the continent on the upper branches of the Amazon, 

 while the Thamnophilus albinuchalis represents it on the op- 

 posite side of the Andes. 



