CARYCHIUM. 95 
course dead, but this shell fortunately does not suffer 
much in appearance from exposure. 
It must be borne in mind that specimens found thus 
on the river bank do not indicate the actual locality of 
the shell, for who shall say how far they have travelled 
before being stranded ? 
Family IV.—CaRryYcHIiIpZ&. 
Genus.—CARYCHIUM. 
C. minimum (smallest). 
Sub-fusiform, semi-transparent, white, rather solid, 
glossy ; microscopically striate in the line of growth; 
whorls five and a half; spire pointed; mouth ovate, fur- 
nished with three denticles ; wmbilicus small and narrow. 
There is no mistaking this little shell when once 
seen. It must, however, be examined under a lens in 
order to be fully appreciated. It is worth while to 
wait for the animal to come out and travel over a moist 
decayed leaf, when the conspicuous black specks that 
constitute its eyes can be seen and their sessile position 
noted ; indeed, these eyes may be seen through the 
shell, so dark are they and so transparent the shell. 
It is very common under stones, logs, &c., at the 
roots of grass, and particularly among moist decaying 
