[ 4*4 ] 
lift of feveral Rows of Knots or fmall c Papill*e> 
joined together by a tranfparent Membranous Sub- 
ftance, and which is endued with a moft exquifite 
Power of Extenfion and Contradion 5 fo as thereby 
to bring any of thole Knots nearer together, or fet 
them further afunder, and that in every poffible Di- 
rection $ whereby the Animal is able to bend any of 
thefe Arms in any Part, and all forts of ways : Befides 
which, thefe Arms are alfo capable in the Whole of 
fo great an Extenfion and Contraction, that I have 
frequently feen forne of thofe of the fame Creature 
extended, at one Moment, to more than Ten times 
the Length they were of at another. 
The Body of the InfeCt is not much lefs capable 
of lengthening and fhortening itfelf than the Arms. 
When moft contracted, it looks like a little Ball, 
from one Part of which rifes a fmall Knob, not 
unlike what is commonly feen at the Head of a Le- 
mon : This is the Tail, and upon this the Infed in 
this Cafe generally refts: Oppofite to this is the 
Mouth, round which the Arms appear regularly ex- 
tended, and refemble a little Star, as ufually repre- 
fented, all whofe Points feem to proceed from the 
fame Centre. But, when extended, the fame ‘Po- 
lypus , which, in the Pofition juft defcribed, fcarce 
appeared One-tenth of an Inch in Diameter, has 
drawn itfelf out to full Three-quarters of an Inch in 
Length 5 in which State the Mouth does, for the moft: 
Part, project like a fmall and fharp Snout in the midft 
of the Arms. 
Together with thelnfeds, Monfteur Trembley fent 
me over fome very fmall Water- worms, which he 
informed me they readily preyed upon j and thefe 
Worms 
