CACILIOIDES. did 
This interesting animal is the only British member of 
a genus consisting of nearly one hundred and sixty species. 
It lives underground, and is never found on the surface of 
the earth in a live state. Whether its subterranean habits 
are the cause or the effect of its being destitute of the 
power of sight need not be discussed here, but it is a fact 
that, in common with other subterranean animals, it is 
eyeless, upon which pecuharity the name cwczlioides is 
founded. 
Dr. Jeffreys remarks : “In all probability the 4. acicula 
lives upon animal matter; for, in the spots where it has 
been found living, no underground fungus or other vege- 
tation appears to exist, and the form of the shell would 
induce a belief that this snail is not only zoophagous but 
predaceous. ‘The shells of all true G/andina, which are 
carnivorous, have the same kind of notch or truncature 
at the base as the present species of Achatina.”’ 
It inhabits various parts of England, Wales, and 
Ireland, under stones and at the roots of grass, some 
inches underground. As it would be rather a tedious 
process to search for it by digging all over a district, 
it is perhaps fortunate that another means of obtaining 
it exists. Among the rejectamenta of rivers (Thames, 
Yorkshire Ouse, &c.) specimens are common, being 
doubtless washed away by floods from their native 
localities. The specimens found in this way are of 
course dead, but this shell fortunately does not suffer 
much in appearance from exposure. 
