LAMNA. 
The snout conical; bod}- disposed to a rounded form, with a promi- 
nent ridge at the side near the tail; gill openings wide. Teeth long 
and pointed, with a process on each side near the root. An anal fin. 
PORBEAGLE. 
Sqnalus eornuhicm, 
Lamna cornnhicus, 
Isurus oxyrhyncus. 
“ c-ornuhicus, 
Longnez. 
Lamna cornubica, 
f* <( 
(( ft 
it 
ft 
Turton’s Linnseus. 
Cuvier. 
Eamnesque; but his figure is exceed- 
ingly bad. The genus Isuriis was 
founded by Raflnesque, but his de- 
finition that the lobes of the tail are 
equal, must not be taken literally. 
Gray; Catalogue of British Museum. 
Lacefede and Risso. 
Fleming; Br. An., p. 168. 
Jenyns; Manual, p. 600. 
Yarrell; British Fishes, voi. 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. 
Cuvier regarded it as a separate species; but his authority is 
of less weight, 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 different from 
the Porbeagle; but in the second edition of that work, he has 
VOL. 1. 6 
