\ 
the length of its probofeis or tongue, which is na¬ 
turally exlerted, and of a great length in proportion 
to the body. In the degree of tranfparency this 
animal differs greatly in different individuals; being 
fometimes feen of a glaffy clearnefs, fo as fcarce to 
be diftinguifhable from the water in which it fwims, 
and at other times of a dufky caff, fo as to be readily 
perceptible at a diftance. It is one of thofe animals 
which are poffeffed, in a very high degree, of the 
power of reproduction, and if cut into two or more 
parts, will in a few days conftitute fo many com¬ 
plete fpecimens. 
t 
I 
