Mr. P. L. Sclater on the Genus Hylophilus. 295 



This made the species known up to that date seven in 

 number. 



In the same year Mr. LaAvrence^ in his catalogue of Mr. 

 McLeannan^s Panama collection^ described three new species 

 of Hylophili, H.pusillus, H. aurantiifrons, and H. viridiflavus. 

 Of these the first appears to be inseparable from H. decur- 

 tatus, the second and third are good species, and raise the 

 number known up to that period to nine. 



In 1861 I described a tenth Hylophilus from Tobago {H. 

 insularis), and in 1862 an eleventh from Bogota [H. fenni- 

 gineifrons) . 



In 1862 I published my catalogue of the birds in my col- 

 lection. In it I arranged the genus Hylophilus among the 

 Vireonidse, following Bonaparte. I had, at that time, ex- 

 amples of live species only. 



In 1865 Mr. Lawrence communicated to the Academy of 

 Natural Sciences of Philadelphia the description of H. acu- 

 ticaudus from Venezuela. This seems to be the young of 

 the species previously described by the. same author as H. 

 aurantiifrons. 



The following year (1866) I added two novelties from 

 Natterer's collections to the genus, under the names H. pec- 

 toralis and H. brunneiceps, raising the number of species to 

 thirteen. 



In the same year {' Review of American Birds/ pp. 372 et 

 seqq.) Prof. Baird gave a revision of the species of this group 

 in his usual excellent style. He described nine species as 

 known to him, and appended a list of seven others with which 

 he was not acquainted. 



In 1867 Mr. Salvin and I described and figured, from 

 Mr. Wallace's Amazonian series, two very distinct new 

 species of Hylophilus [H. rubrifrons and H. semicinereus) , 

 thus raising the total species known to fifteen. 



Two years subsequently (1869) Mr. G. R. Gray gave a 

 list of the Hylophili known to him in the first volume of his 

 well-known ' Hand-list.^ Mr. Gray assigned twenty-one 

 species to the genus ; but at least seven of these are of a 

 doubtful character. 



y2 



