The Natural Hiftory of JAMAICA. 
241 
The Diameter of this at the Bafe which is a little finuated, is an Inch, 
"tis half as high trom the Bafe to the Apex. It hath feveral long Api- 
ces or extant Points, along the Margins of the Volute, is white and fhining 
like Pearl, when the outward whitifh rough Skin is taken off. 
I found this with other Shells upon the Coaft of Jamaica. 
IX. Trochus pyramidalis, albidus, ftriatus, muricatus. Lift. Hist. Conchyl, 
Tab. 628. No. 14. Aa Trochus pyramidalis, rugofus, bafi afpero e flavio Mt/- 
fifipi. Pet. Mem. cur. Ann. 1708. p.128. No. 18 ? : 
This is about an Inch Diameter at the Bafe, about an Inch and a 
half high from the Bafe to the Apex or End of the circumvolutions, 
which are muricated for their wholeLength as the former, and have befides 
tranfverfe Ridges and Furrows very frequent of a reddifh white colour. 
I found one of them on the Shoar of Famaica, with a Hermit Crab 
in it. 
X. Trochus major variegatus, ex viridi rufog; bafi levi, ftrijs multum extan- 
tibus diftinctus. Lift. Hift. Conchyl. Tab. 646. N° 38. Vrochus “famaicenjis 
coftis finuofis, e virefcente verficolor, Pet. Mem. Cur. Anno 1708. p. 128. 
N° 20. 
Thisis about anInchand a half in diameter at theBafe where it is {mooth. 
It is about an Inch high from thence to the Apex or End of the Volute 
which are all underneath like Mother of Pearl and fhining, having here 
and there fome few tranfverfe Ribs and Hollows between, anda Furrow 
between each of the Circumvolutions. It is cover’d all over with a 
white Cruft and with Lines and Spots of reddifh green and brown, making 
it appear as if it were canccllated, 
I found it plentifully on the Shores of the Ifland umeaica. 
XI. Trochas minor ¢ luteo cinereus, compreffus, umbilicatus, unidens, ftriatus, 
Spirts finuofis. Cochlea Barbadenfis rugofa unidens. A {mall rugged Shell 
with a fharp Ridge, anda deep furrow’d Twirl. Per. Gaz. Nat. Tab. 63. 
N° 11. Cat. claff. top. po 4. N° 562. Trochilas Famaicenfis. rugofus unt- 
dens. Pet. Mem. cur. ann. 1708. p. 128. N°*.24.. 1 rochilus..unidens umbili- 
catus, ftrits nodofis exafperatus. L1it. Hift, Conchyl. Tab. 653-N° 52. 
This Shell is of a yellowifh grey Colour, half an Inch in Diameter, near 
as high, having about five Circumvolucions which are ftriated with {mall 
eminent Lines and Furrows, according to the Courfe of the Twirls, 
having crofs them fome Eminences which ate undated, making a few 
Sinas’s the Length of the Orbes. They are umbilicated by the round 
Mouth which hath one Tooth or Knag by the Columella. ee 
I had it from Jamaica, Barbados and Siam... The Sinus’s in Mr, Petiver’s 
Figure are not tufficiently exprefs’d, having beea rubb’d.off. ; 
Ppp = | CHiAS 
