"Pretium immensum, sæpe 100 ducatorum", was the final remark instead of the printed one. "Pet. Amb. t. 2. f. 9", was an additional synonym in the written version. T. CLATHRUS. _T._ cancellatus pyramidatus, anfractibus contiguis lævibus. All the synonyms of the tenth edition of the 'Systema,' together with "Johnst. t. 11. f. 9", were present in the MS., but most of them, together with the final remark, had been subsequently added to the copy by our author. T. CRENATUS. _T._ cancellatus pyramidatus, anfractibus contiguis supra crenatis. The details of the 'Museum' were referred to before their publication. "Pyramidalis" was the earlier reading for "turrita"; "sæpe" was absent: "transversim" preceded "crenati." T. UVA. _T._ cancellatus ovatus, anfractibus contiguis imbricatis. "Pet. Gaz. t. 27. f. 2. Olivaris" was the unpublished additional synonym, and the intended name was borrowed from that work. "Longitudinalibus" was "transversis" in the copy, where "ut latus planum non conspiciatur exterius distincta linea" terminated the account of the volutions: the colouring ("alba") was not indicated. T. CORNEUS. _T._ umbilicatus, anfractibus teretibus decussatim striatis, oris margine reflexo. The "s. cornea", the name, and the "vix manifeste" had been added to the original account, which latter was referred to previous to its publication. T. IMBRICATUS. _T._ pyramidalis, anfractibus deorsum subimbricatis. The "præcedentibus tribus", here mentioned, were not those which the species now follows, but nos. 358, 359, 360, after which it was placed in the MS. "Grisea" had been added by Linnæus. T. REPLICATUS. The entire account of this shell was interpolated in the MS. by Linnæus. T. ACUTANGULUS. _T._ pyramidalis, sulco unico acuto majore. The last four words of the details were written subsequently to the earlier description, to which no name was then appended. T. DUPLICATUS. _T._ pyramidalis, sulcis 2 acutis. "Bonan. 3. f. 114", and "List. 160. t. 3. f. 7", were additional synonyms; both, however, were quoted in the 'Systema.' The "color albus", and the term "obtusiores", were in the Linnean handwriting. T. TEREBRA. _T._ pyramidatus, sulcis 6 acutis. "Bonan. 3. f. 115" was in the place of the doubtful figure of Rumphius; the indicated colouring was simply "pallida": the "obsoletum" was an afterthought. HELIX. Testa cochleata, lævis. Apertura subrotunda segmento circuli exempto. Except _scarabæus_ and _amarula_, the members of this genus were located in the same group as in the published edition. H. SCARABÆUS. _Morion_ ovatus subanceps, labio utroque tridentato. The "ovata, adeo" has replaced the earlier "ita", and "angulata" the original "articulata". The account of the aperture was not inserted in the manuscript, wherein "List. Hist. 577. f. 31" and "Klein 11. t. 1. f. 23", had been inserted in the Linnean handwriting. H. LAPICIDA. _H._ marginata perforata convexa carinata.