( m) 
which was tnore natural to it than the Ahr, was In- 
jurious to it, much more would the Air> to which 1 
expofed it, have been prejudicial. The fine Fibre 
which it put forth, and the Decreafe of its Bignefs, 
were Signs that it fuffered fome Uneafinefs. Laftly, 
The black and thickilh Juice, which came out of its 
Entrails, could be nothing but fome half coagulated 
Blood, which it had fucked in the Stomach of the 
Filh. Its Pump, which it ufes after the fame Man- 
ner with LeacheSy is a ftrong Proof that this Infed 
cannot take its Nourifhment by any other Power than 
that of Sudion. Its refiding in the Stomach, or fome 
other Part of the Body, can be for no other Reafon 
but to nourilh itfelf with the Blood, or fome other Juice 
of the Animal. 
As the Bonlte is a Fi(h of Prey, living on other 
fmaller Fifties, it is probable that this little^ Leach 
ufually fattens itfelf on thofe which come into the 
Stomach, and that it lives on their Blood. 
The Stomach, in which I found it, was quite emp- 
ty, fo that it was probably as hungry as the Bonlte 
could be ^ for this FiCh is not eafy to be catched but 
when hungry. However, it was the firft Time I found 
it fo very empty, though I have feen a great Number 
opened. 
One may conjedure, when the Stomach of the 
Bonlte is empty, and this Leach is in it, that it be- 
ing alinoft ftarved, fattens its Pump to the Membrane 
of the Stomach, to fuck Nourilhment from it j and if 
fo, it mutt caufe a painful Senfatioo of Hunger iu 
the Filh. 
Lattly, 
