INTRODUCTION. V 
To determine with accuracy the names and synonyms 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 reeeived 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, E'sq., may be regarded as the types of the species 
described by Dr. G. Shaw, in the General Zoology or 
Zoological Miscellany. 
Andrew Smith, M.D., 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, E'sq., and 
Capt. Fitzroy, R.N., as the types of the species described by 
Mr. Bell in the Zoology of H.M.S. Beagle. 
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