B. VIRGINEUM. I can find no account of this shell in the written copy. B. UNDOSUM. The nearest approach to this species seems the variety B. of the _Murex succinctus_ (the shell so named in the 'Mantissa'). _M._ lævis, sulcis transversis lævibus, angulo marginali. d'Arg. Conch. t. 12. f. N. Bon. 3. f. 47. Testa ovata, absque tuberculis magnitudine nucis, exarata sulcis transversis pallidis, eminentibus vero lineis luteis. Spira obtusa, anfractibus rotundatis. Cauda teretiuscula. Apertura ovata, margine crasso, nec alia costa laterali crassa. Var. B. Rugis s. angulis obliteratis 5 longitudinalibus. B. MACULATUM. _Turricula_ elongata, anfractibus lævibus integerrimis. The l. of Gualtieri, and the reference to d'Argenville, were printed emendations. B. CRENULATUM. _Turric._ elongata, anfractibus margine crenatis. The reference to Gualtieri was an emendation. B. STRIGILATUM. _Turric._ elongata, oblique striata. B. DUPLICATUM. _Turric._ elongata emarginata, anfractibus bipartitis striatis. STROMBUS. This genus, rendered more natural by the omission of _S. lividus_ and _ater_ (assigned to _Turricula_), appeared under the designation of HARPAGO with the following definition:-- Testa depressa, nodosa. Apertura longitudinalis. Labium antice dilatatum ultra basin. The _Strombi_ of the manuscript were the young of this genus (erased by Linnæus) and certain Lamarckian _Fusi_, _Pyrulæ_, and _Fasciolariæ_. S. CHIRAGRA. _Har._ labii spinis lævibus 6, extimis recurvis, fauce striata. "Bar. Icon. 327. f. 1." was an additional synonym. S. SCORPIUS. _Har._ labii spinis nodosis _7_, fauce striata. The published account was enlarged by the following passages, which are not to be found in the written copy: "crenulato cincta", "lato, brevi", "s. incarnata", "s. testaceo-nebulosus". "Distinctum" was originally "obscuro", and "repandus, inflexus" was "denticulatus." S. LAMBIS. _Har._ labii spinis lævibus _7_, fauce lævi. "Bar. Icon. t. 1326. f. _7_" was the synonym omitted in printing. The name was borrowed from d'Argenville. S. MILLEPEDA. _Har._ labii spinis lævibus 10. "Anteriora" was "posteriora" in the manuscript. S. LENTIGINOSUS. _Har._ labio inermi integro rotundato, angulis pluribus nodosis. The "aut marginatum" was "fragile, diaphanum", so that a young shell appears to have furnished the materials for description. S. GALLUS. _Har._ labio inermi mucronato, cingulo dorsali spinoso. S. AURIS-DIANÆ. _Har._ labio inermi muricato, cauda recurva, lobo incurvato. The "32. f. II." was a misprint for the written "17. f. O." The printed additions are "usque" and "Color testaceo et albido nebulosus." S. PUGILIS. _Har._ labio inermi obtuso, spira spinosa distincta, basi emarginata. "Nitida", and "sed spira albida", were not found in the original. S. LUHUANUS. _Har._ labio obtuso, antice posticeque emarginata.