p. 1

Conchology. of the U. States 1827

Genus. Helix.
[Specii?] 6. thyroidus. Shell thin. fragile, convex, umbel-
icate; whorls five, obtusely wrinkled, or
rather with equidistant generally elevated,
obtuse lined, spirally striate with minute
impressed lines; lip widely reflected, white
and flat before, partially concealing the
umbellicus; pillar lip furnished with a
very oblique tooth. Breadth from 4/5 to 9/10 of an inch
(Journal Academia of Natural Sciences Vol1 p123.)
This species very much resembles H.
Albolabris, but is umbelicated, and toothed
on the pillar lip. It is much less common.
It is referable to the genus Cepolis. [Montf.?]

H. minutia. Shell rather thick; spire
convex, little elevated, with 3 volutions;