Note 6 — Chapter XXII
Reading edition
The large claws or pincers of some of these crabs, are most beautifully adapted, when drawn back, to form an operculum to the shell, which is nearly as perfect as the proper one that belonged to the original molluscous animal. I was assured, and as far as my observation went it was confirmed, that there are certain kinds of these hermits, which always use certain kinds only of old shells.