INTRODUCTION. V 



To determine with accuracy the names and spionyms of 

 the species, the Museums of Paris, Leyden, Berlin, Vienna, 

 Francfort, and other large continental collections, have been 

 personally examined. Many of the specimens in the Museum 

 collection have been received from the original describers. 

 So that there is every reason to believe they are named in 

 perfect accordance with the various continental collections. 



Mr. Mitchell, the Secretary of the Zoological Society, and 

 Dr. Horsfield, of the East India Company's Museum, having 

 kindly allowed me to compare the specimens in their Mu- 

 seums with those in the Museum collection, have rendered 

 the series more complete, and enabled me to determine with 

 certainty the synonyma of the typical specimens in these 

 collections. 



The specimens presented by 

 Sir Joseph Banks, Bart., 

 Capt. White, 



Patrick Russell, M D., and 

 J. Weeks, Esq., may be regarded as the types of the species 



described by Dr. G. Shaw, in the General Zoology or 



Zoological Miscellany. 

 Andreiv Smith, MD., as the types of the African species 



described by this naturalist in his Illustrations of the 



Zoology of South Africa. 

 T. E. Bowditch, Esq., as the species described by Dr. W. 



Elford Leach, in Mr. Bowditch s Ashantee. 

 Charles Darwin, Esq., and 

 Capt. Fitzroy, R.N., as the types of the species described by 



Mr. Bell in the Zoology of H.M.S. Beagle. 



a 3 



