INTRODUCTION. Vll 



Copt. Sir James C. Ross, R.N., as the types of the species 

 discovered during the 'Antarctic Expedition. 



Sir Robert Schomburgk, as the types of the species collected 

 during his travels in British Guiana, and described by 

 Mr. Gould. 



John Taylor, Esq., as the types of the species described by 

 Mr. Swainson in his paper on the Birds of Mexico. 



J. R. W. Thompson, Esq., R.N., as the types of the species 

 discovered during the voyage up the Niger, and de- 

 scribed by Sir W. Jardine. 



&c., &c. 



Amongst the specimens or collections which have been 



procured by purchase or exchange, the following may be 



specially indicated : viz., those from 



The Frankfort Museum, as being the types of the species 

 collected by Dr. Edward Riippell, in his travels in 

 North Africa and Abyssinia, and described or figured 

 in his " Zoologischen Atlas ; " " Fauna von Abyssinien ;" 

 and in his papers in the " Transactions of the Senken- 

 bergian Museum at Frankfort." 



The Leyden Museum, as authentic specimens of the species 

 described by M. Temminck, the director of that in- 

 stitution, in his " Planches Coloriees," and by M. Muller 

 in his contributions to the Natural History of Borneo. 



The South African Museum, as being the specimens col- 

 lected during Dr. Andrew Smith's expedition into the 

 interior of South Africa, and described by that zoo- 

 logist in the Report of the South African Association, 

 his " Catalogue of the South African Museum," or 

 figured in his " Illustrations of the Zoology of South 

 Africa." 



The Imperial Museum of St. Petersburgh, 



The Imperial Museum of Moscow, 



M. Brandt's Collection, and 



