"Quinque" and "adspersis" were not in the original. C. OCELLATA. _C._ marginata lutea, ocellis nigris. C. FLAVEOLA. _C._ marginata fulva, albo punctata. C. PORARIA. _C._ marginata subviolacea, albo punctata. C. PEDICULUS. _C._ transversim sulcata. "List. 168. t. 3. f. 17." and "Barr. t. 1326. f. 28." were cited in addition to the printed synonyms. The last four words of the description were not in the copy. C. NUCLEUS. _C._ sulcata punctata tuberculis, rostrata. "Pet. Amb. t. 16 f. 11." was cited as illustrative. C. STAPHYLÆA. _C._ punctis elevatis sine striis, subrostrata. The printed "minus" has been substituted for the earlier "vix"; "lutea" for "flava"; and "totam basin" for "maximum partem baseos." C. GLOBULUS. _C._ rostrata lævis. The printed additions were "alba s.", "extremitate utraque" (in place of "postice"), "Superficies punctis vix manifestis notata", and "excurrentes in strias". BULLA. Testa subrotunda, inflata, lævis. Apertura oblonga, non utrinque dentata. Spira obsoleta. Columella obliqua. The _Murex ficus_ and _rapa_ of the printed edition were originally located in this genus, from which _Auris Midæ_, _Auris Judæ_, and _achatina_ were excluded: the two former were placed in _Morion_, the last in _Buccinum_. B. OVUM. _B._ birostris, labio dentato. "Arg. t. 21. f. A." "Pet. Gaz. t. 94. f. 7." "Pet. Amb. t. 8. f. 6." were additional references in the written copy: "magnitudine ovi gallinacei", "apice et basi producta", were emendations during the printing. The "dilatata" was originally modified by a "parum." B. VOLVA. _B._ birostris, rostris elongatis striatis. "List. t. 711. f. 63" had been added to the copy by the hand of Linnæus. The mode of reference (not, as in the earlier writings, by sections and chapters) evinces that this addition was, in all probability, subsequent to the publication of the work. B. VERRUCOSA. _B._ angulata, aucta utrinque puncto osseo. The correct synonyms of "Arg. t. 21. f. M." and "Pet. Gaz. t. 97. f.22." were found in the manuscript: the printed emendations were, "magnitudine ovi passerini", "uti anterius", and "granis duobus" for the earlier "punctis." B. GIBBOSA. _B._ angulata, cingulo elevato. "Bonan. 249", "List. t. 711. f. 64", "Pet. Gaz. t. 15. f. 5", were cited in the copy: "præcedentis magnitudine", "solidiorque", with the modification of "cylindrica" by a preceding "sub", were press emendations. B. NAUCUM. _B._ rotundata pellucida. The size was not at first mentioned. B. AMPULLA. _B._ rotundata opaca. The printed "nulla" replaced the earlier "descendens, nuda", and "pallido-testacea" the written "albida." The "antice, nullus vero postice" was an emendation of the press. B. PHYSIS. _B._ spira obtusa, lineis crispata. "Sæpe", "hiansque", "tenue", and the name, are not to be found in the written copy: "apicem" was the reading for the printed "ventrem, aduatum." B. AMPLUSTRE. _B._ spira elevata, fasciis incarnatis.