294 Mr. P. L. Sclater on the Genus Hylopliilus. 



lotis of Temminckj but H. amaurocephalus, as was pointed out 

 by Nordmanu (in E.rman's Reise) in 1835, Avhen he de- 

 scribed tbe latter species. Up to 1835, therefore, only 

 three species of Hylophilus were recognized, H. thoracicus, 

 H. pcecilotis, and H. amaurocephalus. 



The next addition to the species of this genus appears to 

 have been made in 1837^ when Bonaparte described, in the 

 ' Proceedings ' of the Zoological Society of London^ a " Sylvi- 

 cola decurtata " from Mexico, which, as Prof. Baird has 

 shown (Rev. A. B. p. 380), is the same as Hylophilus cine- 

 reiceps, Scl. et Salv., of 1864. Bonaparte's name, of course, 

 has priority. Bonaparte subsequently (in 1850) made this 

 species the type of his new genus Pachysylvia, which is a 

 mere synonym of Vireo. 



In ] 844 Tschudi described two new species of Hylophilus 

 in his Conspectus of Peruvian Birds, published in Wieg- 

 mann's ' Archiv,^ H. frontalis and H. olivaceus. The former 

 he likewise subsequently figured in his ' Fauna Peruana."* 

 Both these species are unknown to me. 



In 1845 Lafresnaye described two new Hylophili from 

 Bogota collections, H. semibrunneus and //. flavipes. These 

 are both good species, of which I have specimens, and 

 raise the number of species (known to me) up to that date 

 to six. 



In his Ornithologische Notizen, published in 1847"^^, Dr. 

 Cabanis placed Hylophilus, with some doubt, next to Culi- 

 civora, among the Parinse. It was, I think, Bonaparte, in 

 his Conspectus, three years subsequently, who first associated 

 Hylophilus with the Vireones and Cyclorhis in what I con- 

 sider to be its correct position. 



In 1856 Burmeister (Syst. Ueb. d. Th. Brasil.) gave us a 

 few notes on two species of Hylophilus which he had met 

 with in South-east Brazil, H. poecilotis and H. thoracicus. 



In 1859 (P. Z. S.) I described the ''first of this genus I 

 had seen from the country north of Panama/"" H. ochraceiceps, 

 from specimens obtained by M. Boucardin Southern Mexico. 



* Wiegm. Arch. 1847, pt. i. p. 318. 



