4 
INTRODUCTION. 
The principal object of the present Catalogue has been to 
give a complete list of the species of Fishes that have been 
recorded as found in Great Britain, indicating at the same 
time then localities, and the species that are contained in 
the Collection ; the latter are indicated by the letters B. M. 
annexed. 
The synonymy of this Catalogue has been chiefly collated 
by Mr. Adam White. 
JOHN EDWARD GRAY. 
British Museu m , 
Sept. 26 th 9 1851. 
