IDK. 



395 



ABDOMINAL 

 MALACOPTERYGIL 



CYPRINID&. 



THE IDE. 



Leuciscus idus, CUVIER, Regne An. t. ii. p. 275. 



,, ,, JENYNS, Syst. Cat. p. 26. 

 Cyprinus ,, LINN.EUS. BLOCH, pt. i. pi. 36. 



LEUCISCUS. Generic Characters. The anal fin short, as well as the dorsal, 

 but without strong rays at the commencement of either ; no barbules at the 

 mouth. 



The species of the first section of this sub-genus, instituted by Klein, have the 

 dorsal fin over the ventral fins. 



ACCOKDING to Mr. Stewart, this species was taken at the 

 mouth of the Nith by the late Dr. Walker ; and a figure 

 from M. EkstronTs coloured plate is introduced here, with a 

 short description, to assist in identifying this species at any 

 future time. 



Bloch says this fish is distinguished by the bulky character 

 of the body, and by the anal fin having thirteen rays. It 

 was first described by Gesner, and is found in Pomerania, 

 Westphalia, Sweden, Norway, Denmark, and Russia. It is 

 an inhabitant of large rocky lakes, from which it seeks its way 

 into rivers in the months of April or May, to deposit its 

 spawn in running water among stones. It feeds on worms 



