213 
of the Squalus maximus. 
dog-fish, the stomach in its form is neither like that of the 
Squalus maximus, nor blue shark. I have given a drawing of 
it, as it appears to form a link between the two. The struc- 
ture of the ovum, and the mode of hatching it is very different 
in the dog-fish from that of many other sharks ; as I have had 
opportunities of investigating the mode of generation in that 
species, I shall make it the subject of a future communica- 
tion. 
I cannot close the present paper without mentioning, that 
nearly about the same period, two other Squali of large dimen- 
sions were thrown upon our coast. The probable cause of 
this event, is the season being uncommonly boisterous and 
tempestuous. On the 3d of January, 1809, a fish was thrown 
ashore at Penrhyn, in Cornwall. On hearing of it from a per- 
son on the spot, I sent down a drawing of the subject of this 
paper to compare with it, and the fish proves to be of the 
same species, and a male, measuring thirty-one feet in 
length. 
The other was thrown ashore on the 7th of October, 1808, 
at Rothiesholm, an estate of Gilbert Meason, Esq. in Stron- 
say, one of the Orkney isles. It had been seen lying on some 
sunken rocks, eleven days before, was in a half putrid state, 
and the sea fowl were in great numbers feeding upon it. Those 
who saw it, reported that the skin was rough in one direction, 
and smooth like satin in the other. At the time of its being 
examined, the skin and a great many other parts of the fish 
were wanting. 
Mr. Meason, with a zeal for science which does him infinite 
credit, upon hearing the strange accounts which were given 
of this sea monster, got his brother, Malcolm Laing, Esq. 
mdcccix. F f 
