180 
Range in British Museum. 
6 . Cyprcea caput-serpentis 
... New Zealand. 
7. Cyprc/ea gangrenosa ? Sol. 
. . . Mozambique. 
8. Trochus anthosa {J) 
... New Zealand. 
tuberculata ? Gray. 
9. Natica Brodripiana ? Reclus 
West Columbia. 
10. Turbo margaritacea , Lam. 
. . . Seychelles. 
11. Tellina rugosa 
. f . New Caledonia. 
12. Myrtea scalia, Lam. 
... St. Thomas. 
18. Terna California ? Young. 
Terna Cumingii ? Reeve. 
14. Modiola tenuistriata , Dun. 
It is worthy of note that the Obeliscus teres of the above 
list is the nearest living representative of the oolitic genus 
JYerincea so abundant in the limestones of that formation. 
The following communication from Mr. Plant, F.G.S., 
was read : — - 
A Beetle of Good Omen from Yucatan. 
This curious beetle is found in the Province of Merida, 
and the Indians find it in the caverns and underground 
chambers in the ruins of the ancient buildings, described by 
by Mr. J. L. Stephens in his interesting work on Yucatan. 
The natives have a strong superstitious regard for these 
beetles, considering them as powerful charms against evil 
spirits, and sure to bring good luck to their 'possessors, so 
they keep them alive in their houses^ and carry them about 
on their persons. In order to secure the beetle from 
wandering away, a light band of gold is fastened round the 
thorax, having a gold chain and hook attached to it ; this 
hook serves to secure the beetle to the curtains of a bed, 
as a protection during the night from ghosts and evil spirits 
and also to fasten in front of the dress in the daytime, to 
wear like a living brooch. The Indians have a belief that 
the beetle will live for years without food or water, and 
