inhabiting the United States. ` 429 . 
Shell. Flattened-convex ; epidermis variegated, 
with rufous bars, and spots arranged obliquely across 
the whorls; whorls in full-grown individuals six, 
striated obliquely with raised, acute, equidistant; 
curved lines, which give a roughness to the surface ; 
aperture viewed perpendicular to its plane nearly 
circular; //p simple, thin, brittle, within shining, 
sometimes pearly ; umbilicus large and deep, exhibit- 
ing all the volutions ; base paler than the upper sur- 
face, with a colored band more or less perfect, the 
colored bars where they exist narrow, and converg- 
ing into the umbilicus. 
Greatest: transverse diameter about one ineh. 
. GEOGRAPHICAL. DISTRIBUTION. Inhabits the North- 
eastern and Middle- States, . and the Western States 
from the eastern end of Lake Superior to Arkansas. 
It will. -probably be found to exist in the whole terri- 
tory of the United States. 
Rrewanks. In New England this is 2 pm phe 
most common of the genus. It abounds in the 
forests, and is not uncommon in the open country in 
- moist situations, where it can find shelter under logs 
and stumps. It seems to be more gregarious than 
other species ; at any rate numbers are more frequently 
.found in the same retreat. It does not. bear a change 
from a moist to a dry situation so well as many other 
species. _ In captivity it remains buried a great part 
of the. time under the moist earth, with the body 
half protruded. If removed to the surface, it with- 
draws within the shell, protects its orifice by three 
or four coverings, and soon dies unless supplied with 
moisture. 
VOL. III. — NO. IV. ~ o9 
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