260 
The Natural Hiflory of JAM AIC A. 
This Cockle is about two Inches and a half from theCardo to the oppo- 
fire’ Circumference, three Inches from one Side to the other in the broadelt 
Part, about an Inch deep, both Valves being join’d, ’Tis all over 
white, without any apparent S¢rie or Afperities, only fome very fine 
concentric Lines as if drawn from the Cardo, and within a little yellowifh. 
I found this in the Seas adjoining to Famasca. 
XXI. Pectunculus magnus, planus, orbicularis, fere rubef{cens, capillarivus 
ftriis quaft cancellatis confpicuus. Lift. Hit. Conchyl. Tab. 337. No. 174. 
Pectunculus Barbadenfis cancellatus. Pet. Mem, cur. 1708. p. 222. No. 27. 
This is three Inches in Diameter, flattifh, thick and white, it hath 
fmall Strie going from the Cardo to the Circumference which are crofs’d 
by concentric Circles, making nearly right Angles with the others and 
the whole. Outfides of the Valves cancellated or reticulated. 
I found it on the Shores of the Ifland of famaica. 
XXII. Pecfuncalus maculatus, fafcits crebrioribus donatus. Lift. Hit. Con- 
chyl. Tab. 278. No. 115. 
This Cockle is round, about an Inch and a half in Diameter, about 
an Inch deep when both Valves are join’d. The Cardo is not exadtly in 
the Middle but onone fide, and from it go very fmall Strie or Lines 
which are crofs’d or reticulated at nearly right Angles by raifed Circles or 
Fa{cie made concentric as if drawn by a Compafs, one End of which 
was placed imthe:Cazdo.: The Shell is thick and has two blackifh blue 
Spots on the infide, and many brown of different Shapes on the outfide. 
I found it inthe Seas adjoining to Famaica. at) 
XXIII. Pectunculus parvus intus ex viola purpurafcens. Lift. Hift. Con- 
chyl. Tab. 338. No. 175; Nae | 
‘This is much the fame with the former only leffer, and the concen- 
tric Circles are not near fo extant or raifed but equal to the Serie 
leading in ftreight Lines from the Cardo to the Circumference. The 
brown Spots without vary, and thofe within likewife. 
I found it with the former. 
XXIV. Pedtancalus parvus, albus, recurvo roftro, tenuiter cancellatus. 
This hath the Vertex or Roffram placed a little on one Side, is white, 
tran{parent, very thin, of about halfan Inch Diameter, and is reticu- 
lated on the Surface of the Valves on the outfide. 
I found this on the Shores of Famaisa. 
KXV. Peltunculus tenuis, fubruber, minutiffimis flriis undatis exaratus. 
List. Hift. Coachyl. Tab. 339. Fig. 176. Pettuncelius Jamaic, rubefcens, andzs 
capillacets tenuifimis. Pet. Phil. Tranf. No. 299. No. 18. Mem. Cur. 1708: 
NO. 24. p. 222. | 3 
This Shell is very thin, about three quarters of an Inch Diameter, 
white on the outfide, red within, almo({t:tranfparent, It hath fome con- 
centric Circles and ee waved Lines croffing one another appearing 
on its Surface if it be look’d upon with Attention. It is very hollow or 
deep. This 
