228 SALMON I A. [mirm DAY. 



He has larger teeth, more spines in the pectoral fin, a 

 thicker skin, a silvery belly, and dark spots only on 

 the back and sides, I have never seen any on the 

 fins. The ratio of his length to his girth is as 8 to 18, 

 or, in well-fed fish, as 9 to 20; and a fish, 18 inches 

 long by 8 in girth, weighed 16,215 grains. Another, 

 2 feet long, 11 inches in girth, and 3 inches thick, 

 weighed 41bs. 2$oz. Another, 26 inches long, 

 weighed 51bs. 5oz. Of the spines in the fins, the 

 anal has 9, the caudal 20, the ventral 9, the dorsal 

 12, the pectoral 17 : having numbered the spines 

 in many, I give this as correct. The fleshy fin 

 belonging to the genus is, I think, larger in this 

 species than in any I have seen. Bloch, in his work on 

 fishes, states that there are black spots on all the fins, 

 with the exception of the anal, as a character of this 

 fish : and Professor Wagner informs me he has seen 

 huchos with this peculiarity ; but, as I said before, I 

 never saw any fish with spotted fins, yet I have exa- 

 mined those of the Danube, Save, Drave, Mur, and 

 Isar : perhaps this is peculiar to some stream in 

 Bavaria yet the huchos in the collection at Munich 

 have it not. The hucho is found in most rivers 

 tributary to the Danube in the Save and Laybach 

 rivers always ; yet the general opinion is that they run 

 from the Danube twice a year, in spring and autumn. 

 I can answer for their migration in spring, having 



