S. lentiginosus. Har. labio inermi integro rotundato, angulis pluribus nodosis.

The "aut marginatum" was "fragile, diaphanum", so that a young shell appears to have furnished the materials for description.

S. gallus. Har. labio inermi mucronato, cingulo dorsali spinoso.

S. Auris-Dianæ. Har. labio inermi muricato, cauda recurva, lobo incurvato.

The "32. f. II." was a misprint for the written "17. f. O." The printed additions are "usque" and "Color testaceo et albido nebulosus."

S. pugilis. Har. labio inermi obtuso, spira spinosa distincta, basi emarginata.

"Nitida", and "sed spira albida", were not found in the original.

S. Luhuanus. Har. labio obtuso, antice posticeque emarginata.

Few of the details were present in the original copy, but appear to have been added, to discriminate the species from the allied gibberulus. "Spira obtusa brevis" was added by the hand of Linnæus; "sæpe subplicati", "postice lobo obsoleto instructum", "intus", "Columella nigricans", "Cauda nulla, sed postice emarginata", were all absent from the MS.

S. gibberulus. Har. labio inermi dorso lævi, spira repanda.