544 Mr. P. L. Sclater on the Geographical 



memoirs written on various portions of the Colombian Avi- 

 fauna, amongst which I may mention the excellent series 

 amassed by the late Mr. T. K. Salmon in Antioquia (108), 

 but no such work as a Manual of Colombian Birds has yet 

 been attempted, nor, judging from appearances, is it likely 

 to be under present circumstances. In the adjoining 

 Eepublic of Ecuador pretty nearly the same state of facts 

 prevails. Matters remain much as they uere when I spoke 

 of this district in my "British Association Address,^' though 

 1 must not forget to mention the valuable contribution that 

 has been made of late years to the ornithology of Ecuador 

 by Messrs, Berlepsch and Taczanowski (109). 



Passing southwards from Ecuador into Peru, I find myself 

 able to chronicle an advance of extreme interest to the 

 student of the Neotropical Ornis. Taczanowski's 'Ornitho- 

 logy of Peru' (110), commenced in 1884 and finislied in 1886, 

 gives us a complete account of the extensive avifauna of that 

 Republic, and registers not less than 134.2 species as already 

 met with within its limits. Nor can wc douljt that when 

 the numerous valleys of the higher Andes are more 

 thoroughly explored considerable additions will have to 

 be made to this list, although we must recollect that a large 

 portion of Peru belongs more strictly to the Amazonian 

 tlian to the Andean Subregion. As regards Bolivia^ where 

 the Andean fauna may be held to terminate, the principal 

 contribution to its ornithology recently effected is the 

 memoir based by Mr. Salvin and myself on the birds collected 

 in the Bolivian Andes by Buckley (111), in which up^vards of 

 500 species are recorded. I should also not omit to mention 

 Mr. Allen's list of the birds collected in Bolivia by Dr. H. 

 H. Rusby (112), Avhich has added some 130 new species to the 

 Bolivian list. 



4. The Amazonian Subregion. 



The Amazonian Subregion, as I propose to call it, 



embraces the whole of the enormous basins of the Amazons 



and the Orinoco, as well as those of the Tocantins and 



other streams flowing out on the Brazilian coast immediately 



