41 



LAMXA. 



The snout conical; body disposed to a rounded form, with a promi- 

 nent ri(]ge at the side near the tail; gill openings wide. Teeth long 

 and pointed, with a process on each side near the root. An anal tin. 



PORBEAGLE. 



Squahifi cofiiuhicus, Tukton's Linnreus. 



Lavima cornnhicus, Cuvier. 



Isnrus n.i'ijrlnjiK'ii';, Rafinesque; but his figure is exceed- 



ingly bad. The genus Isunis was 

 founded by Rafinesque, but his de- 

 finition that the lobes of the tail are 

 equal, must not be taken literally. 

 " roninhicm. Gray; Catalogue of British Museum. 



Longnez, Lacepede and Risso. 



Lamna cornuhica, Flehing; Br. Au., p. 168. 



Jenyxs; Manual, p. 500. 

 " " Yakrell; British Fishes, vol. ii, p. 515. 



" " Donovan ; pi. 108, but the figure is not 



satisfactory. 



In this place it is proper we should notice a fish, which has 

 borne the name of the Beaumaris Shark, from the place in 

 North Wales where it was first taken; and concerning which 

 much doubt has existed among naturalists, as to whether it is 

 a distinct species or a variety of the Common Porbeagle, to 

 which description represents it as bearing a general resemblance. 

 Cuvi(>r regarded it as a separate species; but his authority is 

 of loss v/eight, as he never possessed the opportunity of ex- 

 amining a specimen. Mr. Yarrell, also, in the first edition of 

 his "History of British Fishes," has given it as clifierent from 



the Porbeagle; but in the second edition of that work, he has 

 VOL. I. G 



