[ 4 ’ 9 ] 
Explanation of the Figure by Mr. Bakery fee 
Tab. IV. Fig. 3, 
A. Reprefents an undefer ibed Kind of aquatic Ani- 
maly (lately obferved by the Rev d Mr. Miles of 
Tooting) in the fame Size and Form as it ap- 
pears to the naked Eye. Several of them were 
found in the IVater of a 'Ditch ; whence being 
taken, and laid on a '"Paper, they had a leaping 
Motion. 
B. The fame Animal , as examined by the Microfcope , 
which fhews it to be a triangular , oblong , opake 
Body, fomewhat like the Shape of a Prifm, but 
tapering from End to End. The Three Elorns 
(whereof thofe on the Sides are a Third Part 
longer than the Middle one) appear armed with 
extremely (harp Thorns or Prickles : The fame 
Sort of Prickles are placed like wife along the 
Sides of the whole Body, pointing downwards, 
from Head to Tail. 
C. Shews the Form of a Body inclofed in the former ^ 
and taken out upon Dtffettion. This feems to 
be an Animal in its Aurelia State 5 and if fo , 
what has been before deferibed is only its Husk 
or Cafe, which will be quitted when it comes 
to change. 
Quere, What Animal is this in its perfed State* 
y. Part 
