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.