552 



ZINGELIN PERCH. 



the same ; but is much smaller, and of a somewhat 

 darker colour : the second dorsal fin has but thirteen 

 rays, whereas the former species has usually nine- 

 teen : the body gradually diminishes towards the 

 tail, where it is very slender; and the tail is rather 

 more forked than in the Zingel : the scales are 

 middle-sized, hard, and rough : inhabits clear rivers 

 in several parts of Germany, France, &c. and is 

 much esteemed for the table. By some authors this 

 species has been considered merely as a variety of 

 the Zingel. 



