[ 4°5 1 
veiTels. The arteries arife from the large artery which 
pafTes down the fpine ; they go off in fmall branches like 
the intercojlals in the human fubjecSl, pafs round the air- 
bladder, and get upon the partition together with the 
nerves, and diilribute their branches in the fame man- 
ner. The veins take the fame courfe backwards, and 
enter the large vein which runs parallel with the artery. 
P L A T E I. F I G. I. 
Shews the whole animal of the full fize. It lies on 
one lide ; which pofture expofes the whole of the under 
fin. The head is twilled, to fhew its upper part, on 
which are feen the eyes, &c. 
FIG. II. 
Shews the animal lying in the fame pofition, but the 
head is twilled in the contrary direction, fo as to expofe 
its under furface. Between the two fins, and before 
the beginning of the under fin, is the cavity of the 
belly of the fifh ; at the anterior part of which cavity is 
the anus. 
P L A T E If. F I G. I. 
Exhibits the whole of the two organs on each fide, 
the fkin being removed as far as thefe organs extend, 
A. The lower furface of the head of the animal, b. The 
cavity of the belly. c. The anus. d. The fin. 
E. The back of the fifli where the fkin has not been 
removed, ff. The fin which runs along the lower 
edge 
