if 8 Of Shells. Part E 
A BLOBLIPD-SHELL, which feemeth to be7 kind of 
Mufck. I find it no where. Here are feveral Tingle fhells 
of this fort, but not one pair : which makes me fomewhat 
doubtful what to make of them. Molt of them have 
about an inch of expanfion. The Concave in the infide, 
is triangular, with fmall ftrait tranfvers Wrinkles, one 
Angle obtufe, two acute. From the two longer fides of 
the triangle, the Margin is fpread out, and on one fide as it 
were doubled backward. It hath alfo one, fometimcs two 
Joynts, very deep, and for fo fmall a (hell, remarkably 
ftrong. 
The Natives of Brafile ufe Mufcle-jhells for Spoons and 
df rebu? US ' ^ ves - W a ft es °f Mufcle-jhells, faith Wormius, are of 
geftis in a Cauftick^nature. As if it were peculiar to this fhell. Whereas 
Brafflia. tne fhells of all forts of Shell-Fijh, being burnt, obtain the 
like. Moft of them, being fo order d, and powder d, make 
excellent good Dentifrices. 
Hitherto go the Double Shells, or with two Valves. 
There remain fome which are made up of feveral fhelly 
pieces conjoyn d to make one Concave-fnell : as 
The Conick CENTRE-SHELL. Balanus major. De- 
fcribed by Rondeletius, and others. It is in lhape fomewhat 
like a Tulip, the feveral fhelly Plates which compofe it, being 
pointed at the top, and {landing together , as fo many 
leaves. They always grow fixed to fome other Body. 
When boy I'd, they are a delicate fort of Meat. 
The SPUNG-CENTRE-SHELL. Balanus Spongiarum. So 
I name it. Commonly, but fomewhat abfurdly,called Lapis 
Spongix. For being well obferved, they appear to be little 
Centre-Shells, which probably never grow very big 3 and 
wherein the leaves feem to be a little more feparate, than in 
the former Species. They look juft like fmall petrifi'd Buds 
of Trees. 
A fmall Centre-Shell, growing upon a Branch of C oral. 
The FLAT CENTRE-SHELL. Balanus comprefa. Com- 
monly called the BARNACLE-SHELL 3 and CONCHA 
(b)Ue&ot ANATIFERA. Becaufe fuppofed to be the Egg of the 
Boethius Barnacle. And by fome (b) it is confidently deliver d,that in 
G°SLx%id tne Orcades there are certain Worms grow in Hollow-Trees, 
om Country- which by degrees obtain the Head, Feet, Wings and all the 
feathers of a Water-Fowl, which grows to the bignefs of a 
Goofe. 
man Dr.Tur 
ner. 
