BANGS AND PENARD: NOTES ON AMERICAN BIRDS. 393 



Female (two specimens) — wing 71.5-72.5; tail, 53.0 ; tarsus, 



20-19.0; exposed culmen, 12.0-12.5. 



Range. — Western Colombia, N. W. Ecuador (Hellma\T). 



Specimens examined. — Western Colombia: San Antonio, 4 d^d^; 

 Ricaurte, 2 cf cf , 1 9 ; Aguadita, above Fusugasuga, 2 (fcf , 1 9 ; 

 Rio Cali, 1 cT, Rio Barratoro, 1 cf • Total, 12. 



Remarks. — This is a very well-marked form, distinguishable by 

 its large size and very pale gray under parts, of about the same color 

 as in P. m. marginatus (Lichtenstein), of which Hellmayr {loc. cit.) 

 thought it might be the western representative. We have before us 

 specimens with and without the gray nuchal band, and hence the 

 character which was supposed to separate the bird as a species proves 

 to be not constant. 



The female possesses a dark oHa'C, not rufous, pileum which places 

 the bird in the polychopterus instead of the margiimtus group. 



The range of P. p. dorsalis is given by Ridgway as extending north 

 to the line of the Panama Railroad, but we believe that it does not 

 reach so far north, as all specimens we have seen from the line of the 

 Panama Railroad are certainly P. p. costaricen^is. 



II. THE FORMS OF PACHYRHAMPHUS MARGINATUS (Lichtcastein). 



Some time ago Berlepsch (Xov. zool., 1902, 9, p. 56) expressed the 

 opinion that Merrem's Lanius atricapiUus was not characterized with 

 sufficient clearness to be accepted for Pachyrhamphus atricapilhis 

 of authors, and that it might equally well apply to Pachyrhamphus 

 nigcr (Spix), suggesting that the name Todus marginatus Lichtenstein, 

 of Bahia, might be used for the species. He said furthermore, that 

 in case Lichtenstein's name were accepted, a northern form might 

 be separable as a subspecies. 



Later Berlepsch (Xov. zool., 1908, 15, p. 141), ha\'ing examined the 

 type of Todus marginatus in the Berlin Museum, adopted the name 

 viarginatus, placing P. atricapiUus of authors (not of Merrem) in its 

 synonymy. Hellmayr (Xov. zool., 1910, 17, p. 314), accepting the 

 name marginaiiis for the species, called attention to the fact that two 

 males and three females from eastern Brazil (Rio de Janeiro and 

 Bahia) had longer wings and tails than specimens from ^Maruins, Rio 

 Negro, Venezuela, and Guiana, adding that in case additional mate- 

 rial should corroborate this difference, the northern bird would have 

 to be pro\-ided with a new name, since T. marginatus and all its 

 synonyms are strictly applicable to the southeast Brazilian bird. 



