THE ROUTING 125 



which runs up the rivers of Siberia, is also closely 

 related to these fishes. 



THE HOUTING (Coregonus oxyrhynchus) is at once 

 recognizable by means of the produced pointed 

 snout ; its name appears to be a Dutch corruption 

 of Whiting. It is a marine fish, common from 

 Scandinavia to Holland, and is often seen on the 

 London market. It spawns in fresh water, and 

 occasional examples have been taken in British 



FIG. 15. Head of Routing. 



rivers ; three recorded by Day were from Lincoln- 

 shire, the Medway, and Chichester, and since then 

 several have been captured in the Colne. The 

 Routing grows to a length of 16 inches. 



THE GRAYLING (Thymallus thymallus) belongs to 

 a genus especially characterized by the rather long 

 dorsal fin, with seventeen to twenty-five rays, the first 

 four to ten of which are simple. As in the Whitefish 

 the scales are moderately large, whilst in the size of 

 the mouth and the strength of the teeth the fishes of 



