[ ill ] 
There may be difcovered, round the Edges of this 
Part, a fcnfible Motion, much refembling that of 
an indented Wheel, or rather of an endlefs Screw, 
that is turned very faft about. 
Thefe Tunnel-like P 'oly pi form no Clufkr?, like the 
others. 
I have remarked, that the little Bodies, that pafs 
fwimming near the anterior Parts of thefe Infe&s, 
are in fome manner drawn into the Mouths of their 
Tunnels; and I have fometimes feen a confiderable 
Number of very fmali round Animalcula fall one 
after another into thefe Openings: Some of thefe were 
indeed afterwards let out again, at another Open- 
ing, which I am not yet able particularly to defcribe : 
but I could plainly fee, that many of thefe little 
round Bodies remain’d within the Bodies of the Polypi* 
and it is therefore apparent, that thefe little Bodies, fo 
taken in, became their Food. 
Thefe Tunnel-like Polypi do alfo multiply by di- 
viding themfdves into two, but they divide them- 
felves otherwile than the cluftering Polypi: they nei- 
ther divide longitudinally nor traniverfly, but (loping 
and diagonal-wife. Of two Tunnel-like Polypi , juft 
produced by the Divifion of one, the fir ft has the 
old Head and a new pofterior End ; and the other the 
old pofterior End, with a new Head. 
I (hall call that which has the old Head, the flips* 
vior Polypus ; and that which has the new Head, the 
inferior one. 
The firft Particulars obfervable in a Tunnel like Poly- 
pus that is going to divide, are the Lips of the infe- 
rior Polypus ; I mean thole tranlparent Edges that are 
fo confpicuous in the Polypi when entirely formed. 
Thele new Lips firft difeover themfelves upon the- 
