The Natural Hiflory of JAMAICA. 
259 
XV. Pectunculus exiguus, albus, tenuiter ftriatus, gibbofor. 
This is not above half aa Inch long, half as broad, very deep, whi 
and almoft {mooth. It hath a long tooth’d Cardo, and Darl 
be ouly a Variety of the Pecfunculus polyoinglymus, albus, ovalis. 
Ifound it on the Shores of Famaica. 
XVI. Pectumculus tenuts modo ruber modo citrinus, striis mune ex parte 
nunc ex toto muricatis. Lift. Hift, Conchyl. Tab. 322, N° 159. Pecfun- 
culus tenuis pellucidus, leviter purpurafcens, denfe firtatus. Ejufd. Tab. 242. 
N°: 179. Pectunculus vulgaris. Rumph. Thef, Anim. Tab. 44. lit. E. Zel/ame 
nagel [chulpe. Ej. 1b. Tab. 48. N®: 9. 7 
This Cockle is two Inches long, and an Inch and a half broad, of the 
Shape, cc. ofan ordinary Cockle. It is fometimes yellow fometimes red 
or white and fpotted. It is very thin and deep, and partly or all muri- 
cated with extant Apéces or Points on the Ridges of the Shell, efpeci- 
ally on the Sides of tt. 
I found it in the Seas, and on the Shores of Famaice. 
XVIL Pectanculus rhomboeides, flriis imbricatis exafperatas. Lis, Hift. 
Conchyl. Tab. 315. No. 151. Fragum. Ramph, Amboin. Thef. Tab. 44. lit. F. 
An Concha ftriata, umbone rostrata, vinofo colore, terreis maculis diftinéto, Bon, 
p. 111. No. 44. Maf. Karcher. p. 446. 91. 
This is much the fame only thicker and with one fide plain and not 
round, making it of arhomboidal Figure, 
I found it with the former and fometimes not imbricated, perhaps by 
Accidents. 
XVIII. Pectunculus fubrufus paululum finuofus, denfe & leviter admodum 
frriatus, Lift. Hift. Tab. 245. No. 46. 
This is round, about an Inch and a quarter in Diameter, and hath 
many {mall Teeth join it with Hollows between to the other Valve. 
Thefe Teeth are placed upon one third Part of the Circumference 
of the Shell towards its fmall Head, which refembles the Bill of a 
Bird. Itis of a whitifh Colour with fome reddifh Marks on its outfide. 
It is a little flat, each Valve being not over a quarter of an Inch 
deep. 
I brought it from famaica where I found it on the Shores of that 
Ifland. 
XIX. Pectunculus exiguus fubfufcus. Lift. Hit Conchyl. Tab. 317, No. 154. 
This Cockle is not an Inchin Diameter, with a ftreighter Side ma- 
king it rhomboidal. It is deep and otherways of the Shape of the or- 
dinary cockle. | Ett 
I found this in the Seas of Jamaica, and Dr. Leirer, in thofe round 
England. 
XX. Peétunculus planus, albidus, intus leviter flavefcens, Left, Eiift, Con- 
chyl. Tab. 265. No. rot. : ) ) 
” This 
