N. albicilla. N. striata, labiis subdentatis, interiore tuberculato.
N. histrio. N. sulcata, transversim striata, labio interiore dentato.
The name, and the synonym, were added by Linnæus to the written details.
N. plicata. N. sulcata, labiis profunde dentatis, interiore rotundato, exteriore utrinque dentibus acutis conicis.
The variety alluded to was a subsequent addition. The details of the 'Museum' had been quoted, in anticipation, for this species.
N. grossa. N. sulcata labiis dentatis, interiore convexo rugoso.
N. chamæleon. N. sulcata, labiis dentatis, interiore rugoso tuberculato.
"Habitat in Banda", and "compositis" after "subtilissimis", are the unprinted additions.
N. undata. N. sulcata, labiis dentatis, interiore rugoso, tuberculato.
The erroneous figure of Gualtieri was not cited when the description was drawn up, but added to the details, along with "confluentibus. Spira acuta prominens", when the present name was substituted for the earlier nebulata.