OF GREAT BRITAIN. 115 



the fins rounded at the extremities. Tail-fin not at all forked, 

 nearly square with the corners rounded off; mouth small, tooth- 

 less; with one barbed at each corner. Scales very small. 

 Colours : head, sides, and cheeks golden green ; darker on the 

 back and fins; orange yellow under the belly; irides bright 

 orange red. 



