9. The Occurrence of Cypraa piriformis Gray, in the 
Mergui Archipelago. 
By E. VREDENBURG. 
(Communicated with the kind permission of the Director, 
Geological Survey of India. 
Gray, a particularly characteristic Australian form which has 
never been authentically recorded from the Indian region (loc. 
cit., p. 186, sp. 165). The specimen, probably on account of its 
relatively small dimensions, has been labelled as immature, 
a conclusion contradicted by the remarkably strong develop- 
ment of the denticulations, the completely formed terminal 
has been the cause of an inexact determination. 
forms of the genus. 
the specimen is smaller than the average, but with an 
intensely polished outer enamel, and of r markably vivid 
colouring. Its measurements are as follows :— 
Height i ss ‘a ee. kam. 
Width ee x3 Vor + eae 
Dorso-ventral diameter ee | eee 
The ascertained occurrence of this beautiful shell in the 
Mergui Archipelago is of great interest, but is not unexpected, 
as the species was already known from Ceylon and from North 
Australia. 
1 Jour. As. Soc. Beng., Vol. XV, N.S., p. 137. 
