"Sigaretus is white and pearly; the shell is enveloped in the folds of the mantle belonging to the animal. There are several species, one or two of which were ranked among the Helix race.
"Stomatella is also very pretty; the shells are pearly. S. auricula, from New Holland, has the appearance of a little Haliòtis.
"Stomatia is a small genus.
HALIOTIS.
VERMETUS.
SCALARIA.
"With the genus Haliòtis you are already acquainted. The animal appears to be very elegantly formed, if the plate I have seen of it be correct.
"There is a number of fine specimens in the British Museum.
"The family Plicacea contains only,
| Tornatella | Voluta, chiefly. |
| Pyramidella. |
"All the species have plaits, or folds, on the columella. The shells are marine and foreign in both genera. ([Plate 9.])