542 TEN YEAES IN SWEDEN. 



peculiar form of the mouth, the small eye, and the high 

 shoulder. 



2. Salmo marcena, Bloch. Lof sik, Sw. 



The leading characteristics of this fish are that the 

 length of the head, as compared with the length of the 

 whole fish,, from the nose to the end of the fleshy portion 

 of the tail,, is as one to four and a half, that the length of 

 the head is equal to the depth of the side of the body 

 between the dorsal and ventral fins, that the orbit of the 

 eye is so large as to equal one-fourth of the whole length 

 of the head, that the lateral' portion of the inter-maxillary 

 bone is long, being equal to twice the breadth of the nose 

 in front, and that the snout is deep. It appears to spawn 

 in the Wener about the middle of October, or ten days to 

 a fortnight earlier than the G. Ozyrhynchus. Both attain 

 a good size in the Wener ; 7 or 8 Ib. 



3. St. Lavaretus, L. Hedge or Martensmess Sik, Sw. 



Also very common in the Wener, the leading character- 

 istics of this fish are as follows : the length of the head, 

 as compared with the whole length of the fish, from the 

 nose to the end of the fleshy portion of the tail, is as one to 

 six ; the length of the head considerably less than the 

 depth of the side of the body; the inter-maxillary bones 

 short, the posterior edge not reaching in a vertical line to 

 the anterior edge of the orbit of the eye ; the eye small ; 

 the snout less deep than that of the supposed S. marcena 

 in specimens of equal length. 



This is the smallest of the three, rarely exceeding one 

 foot in length, and is said to spawn about the middle of 

 November, some even in the beginning of December. 



Besides these three, he gives us the coregonus albula or 

 vendace, and these are the only four species which seem 

 to be known to him ; but we must recollect that he is only 

 referring to the fishes of the south Wener, and does not 

 appear to have studied the icthyology of Scandinavia further 

 north. 



Now, Mr. Lloyd is a man whose opinion is entitled to the 

 greatest respect, for he has not only studied the habits of 



