322 Mr. O. Salvin's Visit to the 



works of Lafresnayc, so as to get rid of a number of names 

 which are only perplexing to any one studying it. 



I spent much time in verifying the names under which I 

 have been accustomed to mention many species of South and 

 Central American birds. The few notes I here subjoin do 

 not represent a tithe of the information, mostly confirmatory 

 of previous views, I obtained. 



BuARREMON GUTTURALis, Lafr. E-cv. Zool, 1843, p. 98. 



On seeing the type of this species I at once recognized the 

 bird we have been accustomed to call B. chrysojjogon (Bp.). 

 It is true that a specimen collected at Medellin by Mr. T. K. 

 Salmon is somewhat blacker on the back than our series of 

 Central American specimens ; but the difference is very slight, 

 and, in my opinion, not of specific importance. Mr. Sclater, 

 in his monograph of the Tanagers (P. Z. S. 1856, p. 86), keeps 

 the two species apart ; so also does Gray (Hand-1. ii, p. 72) ; 

 but in our ^ Nomenclator ' (p. 24) only one species is men- 

 tioned, under the name chrysopoyon : guttaralis is a mucli 

 older title ; and the species should stand as 



BuARREMON GUTTURALIS. 



Arremon gutturalis, Lafr. Rev. Zool. 1843, p. 98. 

 Buarremon gutturalis, Bp. Consp. p. 484. 

 Zonotrichia? aureigula, Bp. MS. 

 Chrysopoga typica, Bp. Consp. p. 480. 

 Buarremon chrysopogon, Scl. P. Z. S. 1856, p. 86. 



Synallaxis brachyura, Lafr. Rev. Zool. 1843, p. 290. 



There are three specimens thus named in the Lafresnayc 

 collection, all of which are immature birds. So far as I could 

 see, they belong to the species subsequently called S. pudica 

 by Sclater (P. Z. S. 1859, p. 191, pi. 10). As the distinctive 

 markings are not matured, and the rectrices imperfectly grown 

 (hence Lafresnaye's name), it would be unsafe to use the 

 name brachyura in preference to Sclater's S. pudica, at least 

 for the present. 



Margarornis sQUAMiGER, D^Orb. et Lafr. Syn. Av. ii. p. 14. 

 The Bogota bird usually thus called differs from one of the 



