i go Natural History of the Grayling. 



In Wales. In Merioneth, the Dee, the Severn, 

 the Wye, the Vyrnew. 



In Montgomery. The Upper Wye and some of 

 its tributaries. 



The Grayling is not found in Ireland. 



The name is said to be a corruption of gray lines, 

 from the longitudinal lines along the body. It is 

 called Oumer, in Northumberland, and the smaller 

 fish, prior to breeding, are known on the Teme as 

 Shutts or Shots. Salviani says the name Umbra is 

 derived from the fish being a very swift swimmer, 

 disappears like a shadow. 



Much has been written about the use of the large 

 dorsal fin. Dr. Day says : " Its large back fin, 

 aided by its well-developed air-bladder, would 

 seem to show that its formation is that best adapted 

 for rapidly rising or sinking in the water." 



FINIS. 



