34^ Of Chftering Polypes . 
The Body of this Animal is very trahfpa- 
rent,feems to behollowand fomewhat fhelly, 
and is in Diameter at the broadeftPart (which 
is about the Middle Way between its Mouth 
and Tail) nearly one fifth of its Length : it 
leffens from thence towards both Extremi¬ 
ties, tapering pretty fuddenly towards the 
Tail End, and terminating in a long fender 
Tube near a Quarter of the Animal’s Length, 
Towards the Mouth End it diminilhes more 
gradually, and not fo much, being no where 
lefs than one Half of its greateft Diameter ; 
it widens again a little about the Mouth, 
which is quite open like that of a Jug or 
Pitcher, and feems not capable of Contraction 
or Dilatation, or furnifhed with any Wheels 
or Fihrillce , as the Mouths of the other Spe¬ 
cies of the Animalcules are. : but to make 
amends for fuch Deficiency, it is provided 
with a moveable Operculum or Cover , con¬ 
nected to its Body by a long Ligament 
or Mufcle, which extending downwards 
(through the Body or Shell) is affixed with- 
infide of it near the Tail. See a a,* ——This 
Ligament is fufiiciently long to permit the 
Operculum to be lifted up to fome Diflance 
from the Mouth, in which Situation lixEY- 
brillce appear placed round the Border of the 
Operculum , at Difiances nearly equal. f Vid, b.) 
Thefe Fihrillce have a vibrating Motion like 
thofe at the Mouths of the other Clujlermg 
Polypes / and ferve by the Current they ex- 
