124 THE ANGLER-NATUKALIST. 



Besides those already mentioned, the principal characteristics of 

 the Barbel are Mouth toothless ; throat-teeth in three rows on each 

 side, the rows numbering 2, 3, and 5 respectively. Body elongated. 

 Length of head compared with total length of fish as 1 to 5 ; depth 

 of body less than length of head. Head elongated, wedge-shaped ; 

 upper half of jaw much the longer. Upper lip circular and fleshy. 

 One pair of barbels at the front of the nose, and a single one at the end 

 of upper lip on each side. Third ray of back-fin largest and strongest, 

 toothed on its hinder surface. Tail deeply forked at the end. Colour :. 

 general hue of upper part of head and body greenish brown, becoming 

 yellowish green on sides ; cheeks, gill-covers, and scales tinged with 

 bronze j belly white ; back- and tail-fins brown, tinged with red ; pec- 

 toral, ventral, and anal fins pale red. 



Fin-rays: D. 4 | 8: P. 16 : V. 9 : A. 3 | 5 : C. 19J. 



Genus GOBIO*. 



THE GUDGEON. 



( Gobio flumatilis *.) 



The species of this genus, or more strictly subgemis, 

 have, like those of the last, the back- and anal fins short at 



* GoUo, the Gudgeon ; fematilisj of the river, Lat. 



