[ 237 ] . 
The bread jets out a good deal towards the open- 
ing of the (hell, and conftitutes the greater part of 
the animal’s body. The feet, mouth, and little 
bridles are placed upon it. 
There are four feet, whofe pofition refembles a good 
deal that of quadrupeds, only that their reciprocal 
bent is more marked. The two foremod are at the 
top of the bread, in the part where it appears mod 
doped. I took them a great while for feelers, be- 
caufe the animal employs them to touch things with; 
but another ufe it makes of them, together with the dif- 
coveryof fometrue bridles, makes mejudge them to be 
legs. They are white, tranfparent, and jointed, bent 
towards the back legs, and terminated by two points 
in the daape of claws. The joints have very thin 
hair on the inferior part. The two hind legs are 
tied to the lower part of the bread. They are 
longer than the fore legs. Each joint has a couple 
of Imall threads at the end, and each leg terminates 
in a claw fomewhat lengthened ; as to the red, they 
are like the fore legs, and bend towards them. 
The bivalve infeft makes ufe of its claws, not 
only to walk upon the conferva^ fome parts of which' 
are true labyrinths, and others foreds to him ; but 
likewife to remove the dirt, to feize its prey, and 
to faden itfelf to other animals of its kind, or to 
neighbouring bodies. 
Under the bread, and near the fore feet, is a black 
fpot, which is the infeed’s mouth ; it is covered with 
a fmall tranfparent Ikin, which opens in the 
middle, and fhews a couple of jaws, marked with 
a very black fpot at the place where they join. Be- 
tween thefejaws hang very fmall white beards like 
thofe 
