INTRODUCTION. 
IX 
John Reeves , Esq., and his son, J. Russell Reeves, Esq., as 
the types of species described by me in the “ Pro- 
ceedings of the Zoological Society,” the “Spicilegia 
Zoologica,” and the Illustrations of Indian Zoo- 
logy-” 
John Richardson, M.D., as the types of species described 
by that zoologist in the “ Fauna Boreali-Americana,” 
and in his papers in various journals, &c., and of the 
species of Mustelve described by Charles Bonaparte, 
Prince of Canino and Musignano. 
M. de Selys Longchamps, as the original of the species 
described in his u Micromammalogie.” 
Colonel Sykes, as the types of the species described 
in his contributions towards the Fauna of the Duk- 
hun, published in the “ Proceedings of the Zoolo- 
gical Society.” 
Thomas Thomson, Esq., R.N., as the types from whence 
the Fernando Po species were described. 
Capt. S. E. Widdringlon, R.N., as being the originals 
from whence the Spanish species discovered by him 
were described. 
William Yarrell, Esq., as the types of species described 
by that author in his various zoological papers. 
Among the specimens or collections which have been 
procured by purchase or exchange, the following may 
be specially indicated, viz. : those from 
Mr. Bullock's Museum, as being the original specimens of 
the species described by M. Kuhl and M. De 
Blainville, from that collection. 
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 
