PERIODICAL VISITS OF THE HERRING. 83 



sole circumstance of a few sickly herrings swimming near 

 the surface takes them from the proper fishing-ground ; 

 but much depends upon the nets and activity of the indi- 

 vidual fishermen. 



From the preceding account it will be observed that 

 there are two kinds of herrings, — one that visits the 

 coasts in summer and the other in winter, — but we can- 

 not find that marked difference which entitles us to give 

 the characteristics of a new species to the herrings of 

 either season ; we therefore venture to doubt the pro- 

 priety of that able author, Yarrell, giving the name of 

 Clupea Lcachii to the herring described by him ; and 

 since writing this remark we find that Professor Valen- 

 ciennes agrees with us on this point. (Baron Cuvier's 

 Hist. Nat. des Poissons, edited by Valenciennes, vol. xx. 

 p. 175.) 



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