Part I. Of Shells. 141 
toward the top or Navle of the fhell. This fort I meet with 
no where. Without of an afh-colour, rough with wrinkles 
in rays, and waved Circles. Within fmooth, the Margin 
white, about * of an inch broad 5 the Seat of the Animal 
yellow fpread out both ways. 
The Animal it felf is headed and horned like a Snail 
See Belloniuss Defcription. Our Fijhermen ufe the ordinary 
kinds to bait with, who find them every where in our Seas 
on the Rocks near the Jhore. (a) If they feel themfelves 
touched, they ftick fo very fail to the Rock, that they can Cochi. 
hardly be loofened thence without a Knife, (b) & Wo 
CHAR II. 
Of SHELLS Double and Multiple. 
NOte, That when I fpeak of the Bafe , I mean, that 
part on which the Teeth , Joynts or Hinges ftand. 
When of the Navle, the peeked end of the fhell, which 
for the moftpartftands behind the Bafe $ asalfo that part 
which anfwers to it, where it doth not. When of the fides, 
not the Concave and Convex, but the edges produced from 
the Navle on the right and' left. 
The SEA- WING. Pinna. Each Valve is very like in fhape 
to the Wing of a large Fowl, from whence I name it. 
Where broadeft, near \ of a yard over. In length two 
feet : being the largeft and longeft of all the fhells that I 
know. The two Valves are naturally ty'd together with a 
fort of Tow 5 whereby they are alfo fattened to fome Stone 
or other Body under Water. The Animal is very good 
meat. 
The SEA-OYSTER 3 in distinction from the common, 
which may be called the Shore-Oyfter. Oflrea Pelagia. Here 
are feveral of this fort, all of them but fmall. Rondeletius 
faith, that in India they are fometimes a foot long. 
The CHESTNUT-OYSTER. I meet with it no where 
defcribed or figur'd. It is near two inches and Hong, of an 
Oval Figure, and fomewhat writhen. The outfide is of a 
dark-brown, very uneven with large Oval Furrows. The 
miide 
