17: 



THE FKKSlI-WATKi; FISllKS i)V KrilOl'K. 



Leuciscus muticellus (Bonai-artk). 



1). 1(1— H, A. 11—12, p. 0—10. 

 Scales : lat. line 10 — i50, transverse 9 — 10/5 — 0. 



Many Continental writers have referred this species to a section of the 

 i^cnus Leuciscus^ which Heckel named Telestes^ and distiniji;"uished by the 

 number of its pharyngeal teeth, which follow the formula 5'£ — 2"-l<. But Von 

 Siebold found that in seventy-two individuals thirty-three had the teeth 5*2 on 

 the left and 4"3 on the rig-ht, two individuals reversed this arrano-ement, and 

 thirtj'-seven had 5*2 on each side. Since this character is not associated with 



. LTICELLrs (hoXAI'AUTE) 



anv other of importance, and is so inconstant, we follow Dr. (xihither in 

 ^^■roupini^ Telestes in the genus Leuciscus. The most obvious character of the 

 species is the broad black band which extends from the arched snout over the 

 eye down the body to the tail (Fig. 95). 



The lish is from five to five and a half times as long as the head. The 



height of the body exceeds the length of the head. The diameter of the 



eye is one-fourth or one-fifth of the length of the head, 



but the length of the nose and size of the eye var\' with 



age and sex. In the young fish they may be more than 



one-third the length of the head. Hence the distance of 



the eye from the snout varies, but is commonl}^ about 



equal to the orbital diameter. The width of the inter- 



orl)ital space exceeds the diameter of the eye, and may 



be about one- third of the length of the head. The snout is rather arched, and 



projects somewhat over the lower jaw. The cleft i)f the mouth is more 



Fig. 96. PHAUYNGJIAL 



TEETH OE LEVCISCIS 

 MUTICELHS. 



