CAT-FISH. 
This egg, which is of a horny substance, and 
of a red brown colour, appears shaped Hke a 
purse, and is flattish and edged on it*s sides. In 
the subje61: dehneated by Edwards, and which 
we have exa6lly copied, there was a whitish 
coraUine inciiistation on the outside, from 
which it is conjectured to have floated for 
some time in the sea. 
Edwards thinks, that he has seen the Cat- 
Fish, which he takes to be a lesser species of the 
Shark, caught in the British Channel ; where, 
he adds, our seamen call it the Sea-Dog. The 
skin of it, he observes, seems .to be what our 
joiners, &c. use to smooth and finish their work. 
The upper side, or back, is of a brownish co- 
lour, variegated crosswise with broken irre- 
gular bare of a dark blackish colour. The 
belly, or under side, is white. It has lateral 
lines from the eyes to the tail, though thev are 
not very visible. The nostrils have slits from 
them into the mouth; and five slits on each 
side of the head form the gills. It has two 
single fins on the back, one behind the other. 
On the belly, there are two jiairof fins ; and cen- 
trically, between the two nns w'aich compose 
the 
