as possess a very soft body cannot be instructively exhibited in a 

 dried state, and are represented by specimens in spirit if prac- 

 ticable. 



Some groups of Reptiles and Fishes are therefore represented 

 in these Galleries by a comparatively much larger number of 

 specimens than others, which may comprise many more species. 

 But in the present Guide, which has for one of its objects to give 

 a general account of these animals, a more uniform treatment of 

 the subject has been adopted. In its preparation I have been 

 assisted by Mr. G. A. Boulenger, the assistant in charge of 



these Collections. 



ALBERT GUNTHER, 



Keeper of the Department of Zoology. 



British Museum, N. H., 

 February 28, 1887. 



TO THIRD EDITION. 



Numerous specimens, some of large size, have been added to the 

 exhibited series of Fishes, and have necessitated some alterations 

 in the arrangement of the contents of the cases at the northern 

 end of the L Fish Gallery ; the fishes of the Carp and Herring 

 families have been moved into a passage connecting the Fish and 

 Reptile Galleries, and containing a wall-case marked 22 b in the 

 plan. 



The Batrachians which formerly occupied a temporary case, 

 have now been placed in a separate large table-case in the Reptile 

 Gallery. 



Beside remarks on the more important additions, and some 

 changes in the nomenclature of Reptiles, no further alterations 

 have been made in the present (third) issue of this " Guide." 



ALBERT GUNTHER. 



British Museum, N. H., 

 May 10, 1893. 



