NINTH DAY.] LA VERET. 263 



allied to the charr, and congenerous both in form 

 and habits."* 



PHYS. You mentioned, among the fish for dinner, 

 the laveret : I never heard of this fish before. 



HAL. It is a fish known in England by the name 

 of shelley, or fresh- water herring; in Wales, by that 

 of gwyniad ; in Ireland, by that of pollan ; and in 

 Scotland, by that of vendis. In colour it is most like 

 a grayling, but with broader and larger scales : it is 

 common in the large lakes of most Alpine countries, 

 and is known at Geneva by the name of fen a ; and I 

 believe that the salmo caeruleus, or salmo Wartmanni 

 of Bloch, or the gang-fisch of the lake of Constance, 

 from a comparison that I made of it with the ferm, 

 is a variety of the same fish. It sometimes is as 

 large as 2lbs. ; and when quite fresh, and well fried 

 or broiled, is an exceedingly good fish, and calvers 

 like a grayling. The laveret of different lakes has 

 appeared to me to vary in the number of the spines 

 in the fins. One, brought me from the lake of 

 Zurich, 13 inches long, and 8 inches in girtli, had 

 12 spines in the dorsal fin, 15 in the pectoral fins, 

 11 in the ventral, 13 in the anal, and 18 in the 

 caudal. The gang-fisch, from the lake of Constance, 



[* According to M. Agassiz, the ombre chevalier and the chair of 

 the lakes of the north of England, are merely varieties of the same 

 species, putting aside colour as of 110 importance in relation to specific 

 character.] 



