vania, "--— irginlk; North olina, and Ala- 
bama. It is said by Mr: Say to be found in Ohio. 
Remarks. The identification of this and the next 
described species has long been a desideratum, Speci- 
mens of a small shell, with a small and rounded but 
profound umbilicus, and with two internal teeth, 
exist in almost every cabinet. In some particulars 
they. resemble Heu gulàris, Say, i in others HELIX 
suppréssa, Sax, and, as the resemblance preponderates 
in fayor of one or the other, they are known by one 
or the other name. They do not, however, agree 
entirely with Mr. Say’s description of either, and 
hence some conchologists have supposed that he 
described from varieties only; but I have recently 
examined a shell from Alabama, belonging to the 
cabinet of Mr. Lea, which corresponds perfectly with 
the description. It is much larger than the common ` 
specimens, being one fourth of an inch in diameter, 
and differs. from. them in having the umbilicus en- 
tirely closed. It has seven full whorls, which are 
beautifully fine and distinct to the very nucleus, 
"which is uncommonly small. I consider the umbili- 
cated shells to be immature, or'not fully developed, 
though an examination of a larger nümber may show 
that the full grown shell is also umbilicated. 
The present species resembles HeL1x suppréssa, 
which is next described, for which it may be mis- 
taken. It is distinguished from it by the following 
differences. 1t has one more whorl; the spire is 
more conieal; the nucleus of the shell is much 
smaller, so that the first two whorls are finer and 
more delicate; the base is not so convex, and there 
are two teeth in the aperture. 
g the United. E 409 . 
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