262 
Se la 
The Natural Hiftiry of J AM AIC A. 
It is fometimes round, not finuated and hath other Varieties. 
They are eaten as other Oyfters. 
Il. Ostrea’ winor'[ulcata, oblonga, gibbofa, ambitu ferrato. Tab. 241. Fig. 
20,21. Spondylus variegatus, striatus, margine digitata. List. Fist. Conchyl, 
Tab. 210. No. 44. Sphoadylus Barbadenjis parvus, alte fulcatus. Pet. Gaz. 
Nat. Tab.24. No. 12. Speckled Barbadoes Rag-Oyfler, Ej. Cat. claffic. & 
Top. p- 93- No. 571. 
The Hinge is made up of two Teeth and two Cavities on the 
Cardo of each Valve. That End generally fticks to fome Stone, Pebble, 
Coral or other Shell at the Bottom of the Sea. 
I found them caft upon the Shores of Jamaica. 
III. Ostrea arborea, Proteiformis, albida, admodam cava. 
This, which hath a hollow on the back of it where paffed the Root 
of the Mangrove, is about an Inch from the Cardo to the oppofite End. 
Tis triangular, near as broad at its End as long, and about three quar- 
ters of an Inchdeep, all of a white Colour like Oyfters. ‘They vary in 
Shape being oblong, roundifh, ec. and have often Depreffions in the 
upper Valve. The End oppofite to the Cardo is fometimes round as 
well as ftreight. 
I found them of feveral Shapes on the Shores of famaica. 
IV. Mytilo pectunculus auritus ravior Berberoides. Fab. Col. aq. & terr. 
Obff. p. lit. & liv. List, Hift. Conchyl.Tab. 244. No. 57, 58, ¢ 59. Auricula 
Ramph. Thef.an. Tab, 46: lit.G. Concha tenuis tefte, Bon.p.106. No. 58. 
Muf. Kircher. p.444.No. 57. | 
The Jamaica Pearl Oyfter-(bell. 
This is about two Inches long, and about an Inch and a half broad, 
it is {mooth on the outfide, only it hath fome little feemingly loofe Scales 
which are fome times dark colour’d and fometimes whitifh. The 
infide of the Shell is of a Pearl Colour, tho” not fo bright or Orientas 
that of the Eaft Indies, but.a little as it were fullicd with Smoak. It 
hath an Ear or fharp End which runs {treight out from one fide 
of the Cardo, and is very long. This Ear is fometimes wanting either 
naturally or by Accident which makes the Variety of Figure in Dr. Liéffer. 
I found it on the Shores atFamaica and take it to be the Oyfter in which 
are found the beft Pearls of the Weft-Indies, which are fifh’d up at both 
Santa Martha and Margarita (lands in the North-Seas, and the Pearl Iles 
near Panama in the South-Sea. They eat the Oytters at both Places. 
The Pearl partakes of the Colour of the Shell, as may be {een in thofe 
of the Péx#a which are reddifh brown; thofe of the Magellan Mutcle 
which are purplifh blue, fome that are reddifh, and the Bohemia and 
Scotch which are of the Colour of the River Mufcle or thar from the 
Oy {ter from whence they come. 
The Shells of fome areon the outfides dark, on others whitifh. 
V. Mafcalus parvus, latus, tenuit ath ; ; 
Fst me, GONE Nie emcee ame sl 
This 
