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Auguft 13, 1762. 
|N a calm on my voyage to England, on board 
the Friendfhip, captain Thompfon, two per- 
fons fwimming took up this moil Angular creature 
floating on the furface. Its motions mufcular. Its 
length a little more than one inch. Four fmall and 
fhort horns, probably its eyes. It protruded them in 
the water only j an orifice in the front part Teeming 
its mouth. Two round fpots opaque, marked A, 
poflibly refpiracula. The mid-line of the back part 
apppeared through a common magnifier like a filver 
leaf, and was in continual undulating motion, either 
from the mufcles or circulation of juices. Two fide 
lines extending the whole creature's length, and end- 
ing in one in the tail of a deep blue. The fingers, 
or tentacles, end in a deep blue ; a filvery caft inter- 
mixed with the blue over the whole back, or upper 
parts, where the blue is lighter. Vide Tab. III. 
This figure is a magnified drawing by the com- 
mon hand-microfcope. It can turn itl'elf on the 
back by a mufcular contraction of the head part, 
the tail and ramified arms inwards. The inferior 
parts are white. 
It died the third day, though the water was fhifted 
once every day. 
XVII. A 
