PREFACE. 
THe present volume concludes the account of the Aglyphodont 
Colubrine Snakes. 
The collection in the British Museum has received by gifts several 
important additions since the publication of the first volume. 
Messrs. Godman and Salvin have deposited a complete series of the 
species obtained by their collectors and described in their great 
work on the Fauna of Central America. The contributions to the 
African Fauna have been scarcely less numerous, the Trustees being 
indebted to Professor Barboza du Bocage for many specimens of East- 
African species described by him; to H. H. Johnston, Esq., C.B., 
F. J. Jackson, Esq., and others for species collected in various 
parts of British Central Africa; and to Dr. J. Anderson, F.R.S., 
for a remarkably interesting collection of Egyptian Snakes. The 
collections made by E. W. Oates, Esq., in Upper Burmah contained 
also a fair proportion of Snakes which were of value as illustrating 
the Fauna of this previously little explored region. 
ALBERT GUNTHER, 
Keeper of the Department of Zoology. 
British Museum (N. H.), 
September 28, 1894. 
