"Now we can tell the next genus," said Lucy. "Helix, snail. But what a number of different shapes, father, those shells have! they are not all snails, I should think, that you have placed on the table."
Plate 7.
Page 34.
"According to Linnæus they are all of the genus Helix, which contains two hundred and sixty-seven species. Many kinds are land-shells; others live in fresh water; few inhabit the sea.
"Shell univalve, spiral, brittle; aperture contracted, semi-lunar, or roundish. The common snail is well-known to most persons. Helix nemoralis, the wood-snail, is very pretty; sometimes it is pink, with brown bands, or plain yellow, or yellowy banded with brown. ([Plate 7.]) The greater part of this genus consists of shells remarkable for their thin, brittle, and semi-transparent substances.
NERITA.
HALIOTIS.