Neohelix albolabris is one of the largest native land snails in North America.

Its range extends from Maine to Georgia and west to the Mississippi River.

In the northern part of this range some specimens may grow to have shells 30mm in diameter.

In the southern part of the range, some specimens grow to 40 mm diameter.

He wrote extensively about it in his pioneering work "Land Snails of New England" which was serialized in 1867 & 1868 in the first volume of The American Naturalist.