124 



THE AJSTGLEE-NATUEALIST. 



Besides those already mentioned, the principal characteristics of 

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

 side, the rows numhering 2, 3, and 5 respectirely. Body elongated. 

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

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

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

 One pair of barhels 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, giU-oovers, and scales tinged with 

 bronze ; 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. 19±. 



GuniiB GOSJO*. 



THE GUDGEON. 



( Gobiojluviatilis *.) 



The species of this genus, or more strictly subgenus, 

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



* Gobio, the Gudgeon ; fluviatilis, of the river, Lat. 



