284 PROCEEDINGS OF THE MALACOLOGICAL SOCIETY, 
Family CYRENIDZ. 
41. Corsrcura, two or three species. Lampun, etc. 
The specimens sent are of two sizes, large and small. Some of the 
smaller shells may be the young of the larger, which agree fairly with 
C. rhomboidea, Prime. Upwards of thirty species appear to have been 
named from Indo-China, and as I have no faith in the validity of 
these specific forms, I do not think time would be well spent in 
endeavouring to identify Mr. Daly’s shells. 
[‘* Very common. I picked up dozens in my compound, which was 
flooded during the recent rains. All were empty, having been eaten 
by some small insect.”’—W. M. D. | 
This note is of interest as it shows the migratory tendencies of 
Corbicula. A compound is the enclosure round a house. In August, 
1900, Mr. Daly wrote to me that his compound was 4 feet under water. 
EXPLANATION OF PLATE VIII. 
Fie. 1. Ampullaria Dalyi, n.sp. 
5, 2. Melania binodosa, u.sp. 
3, 3 Paludomus Siamensis, n.sp. 
