140 Hans von Berlepsch on three new 



maxime affinis, diifert coloribus supra subtusque multo pal- 

 lidioribus, notseo imprimis olivascenti-griseo (nee olivascenti- 

 brunneo), pilei colore clariore, fronte olivaceo perfusa, gula 

 pectoreqne albescentioribus, necnon rostro angustiore et palli- 

 diore. 



This evidently new species is dedicated to Herr A. von 

 Pelzeln of Vienna^ who has kindly sent me many of the types 

 of his new species for inspection, for which I owe him many 

 thanks. M. pelzelni comes very near to M. cantans, but is 

 nevertheless quite distinct, being a much more delicate bird, 

 with a narrower and lighter-coloured bill. But it is espe- 

 cially characterized by its very pale plumage, the back being 

 greyish olive and the throat and breast nearly white. The 

 wing-formula is also different from that of M. cantans ; the 

 first quill is longer and equals the seventh (or little exceeds 

 it), while in M. cantans the first is equal to the eighth or 

 ninth. 



Myiarchus cantans, Pelz., is likewise found near Bahia, and 

 seems to be most common there. I got six Bahia skins of it, 

 selected from the same lots as my specimens of M. pelzelni. 



Mr. Taczanowski having examined my skins of M. pelzelni, 

 agrees with me that it is a good species''^. 



I have had the types of Myiarchus tricolor, Pelz,, and M. 

 gracilirostris, Pelz., for inspection, kindly sent me for that 

 purpose by the Trustees of the Vienna Museum. I find that 

 these birds have nothing to do with my M. pelzelni, but belong 

 to the M. nigriceps group, and are perhaps both referable 



cites also, being evidently referable to M. cantans. But the synonym, 

 Buff. 4, p. 581 (" Tj'ran de Cayenne "), cited there, belongs to some other 

 species of Tyrannidse with yellow crest ; and the var. /3 of Gmelin belongs 

 altogether to M. erythrocercus, Scl. & Salv. On the whole, therefore, 

 to avoid further confusion, I propose to drop the old names altogether, 

 and to call the two species ^^ cantans, Pelz.," and '■'■ erythrocercus, Scl. & 

 Salv.," respectively. 



* [I have two sldns of Myiarchus in my collection which agree with 

 Graf V. Berlepsch's type of this species, one from Bahia (kindly given me 

 by Graf v. Berlepsch when he was in London), and the other from Oyapok 

 ( Verreaux). I am quite inclined to believe that the species is distinguish- 

 able.— P. L. S.] 



