366 
PROCEEDING OF THE SCIENTIFIC ASSOCIATION. 
ing place, there were a number of Trigona Mactroides , the 
valves united but the animal invariably gone — they had ap- 
parently been gathered for cooking, and, after boiling, the 
meat had been taken out without breaking the hinge. The 
same remark applies to the Asiphis rugosa and the Venus 
crenulata also found here in considerable numbers. I saw no 
other shells here than those four sorts. The bottom of this 
bay is probably too calm to allow of shell fish or dead shells 
being driven ashore on its beaches. 
Tuesday , 9 th February , 1869. 
R J. Lechmere Guppy, F.G.S., F.L.S., President, in the Chair. 
Edward Johnston Hammond, Esq., M. RC.S., L. was 
elected a Member. 
The following communication was read : — 
Notice of some new Marine Shells found on the Shores 
of Trinidad. — By R J. Lechmere Guppy, F.L.S., F.G.S. &c, 
Fur pur a trinitatensis n. sp. 
A solid ovate yellowish subrimate shell adorned with nu- 
merous rounded spiral ridges which are crossed by fine im- 
bricating striae. Whorls about 6, with 4 spiral rows of ob- 
ture elongated tubercles, of which the two upper rows are 
much the largest, the superior one forming the angle of the 
whorls. Suture hidden by a row of stout curved and re- 
flected lamellae, of which there are about 3 above each of the 
tubercles on the angle of the whorl. Spire conic, sharp. 
Mouth pink within and often ornamented with two or three 
more or less interrupted spiral red or chestnut lines corres- 
ponding to the external rows of tubercles. Aperture oval 
with a small and decided posterior canal forming the succes- 
