The valvata granulata of Rumphius (t. 22. f. M.) was referred to at illustrative.

N. cornea. N. edentula, obsolete striata.

N. bidens. N.

"Obsoletis" followed "duobus": the name had been written subsequent to the description.

N. virginea. N. subedentula ovata lævis.

"Dentibus pluribus minutissimis" preceded "oris"; "Pet. Gaz. t. 11. f. 3" was in the place of the delusive figure of d'Argenville: the variety d was a subsequent addition.

N. polita. N. lævis, labiis dentatis.

The 1 in the synonym of Rumphius was a misprint for the written I.

N. peleronta. N. striata, labiis dentatis, interiore planiusculo rugoso.

The erroneous synonym was added, along with the name peleronta, to the written details: N. rufa was the original appellation.