The entire account of this beautiful shell was written by Linnæus subsequently to the labours of his amanuensis: the twelve last printed words were not present. The cited figure of Gualtieri was not admitted, as a representation, but only alluded to in the final remark of "Confer Gualt. t. 64. f. O." "List. Hist. t. 572. f. 23", and "Sloan. Jam. 2. p. 239. t. 1. f. 4" were indicated as delineations. H. NEMORALIS. _H._ "Habitat ubique in Europæ nemoribus", and "Argen. t. 32. f. 8", were the unprinted additions. Lister's English Conchology was not, of course, mentioned. "Flavescens" and "nigro-purpurascens", were not in the original. H. HÆMASTOMA. _H._ imperforata subrotunda fusca fascia longitudinali subrecta alba, ore purpureo. H. DECOLLATA. _H._ elongata lævis truncato-mutilata. "Pet. Gaz. t. 66. f. 1", and "Habitat in Arabia. Hasselquist. Santa Cruz. Petiv." were the unprinted additions. The entire account was in the handwriting of our author. H. AMARULA. _Nerita_ edentula oblonga, anfractibus multifariam denticulatis. Our author was evidently puzzled as to the generic position of this peculiar-looking shell, for he has written "Habitu accedit ad Volutas vespertiliones, ore Helicibus, sed labium interius planum, et affinitas cum antecedenti fiat, ut hic relinquatur." The preceding shell alluded to was _N. corona_. H. NERITOIDEA. _H._ convexa longitudinaliter striata. The erroneous reference to Gualtieri was not present in the written copy. H. PERSPICUA. _H._ convexo-ovata, labio interiore nullo, apertura ad apicem usque pervia. The then unpublished details of both this and the preceding were referred to in the tenth edition of the 'Systema.' Patens was the proposed specific appellation. H. HALIOTOIDEA. _H._ depresso-planiuscula obtusissima, ore ovali dilatato. None of the cited figures were at first accepted by our author, who only added that of Rumphius to the earlier description, and wholly omitted the rest. "Transverse" preceded "striata". NERITA. Testa subrotunda, obtusa. Labium interius planum, transversim truncatum, depressum. The generic arrangement was similar to that of the printed version. N. CANRENA. _N._ edentula umbilicata, spira mucronata, labio reflexo bifido. When Linnæus first described this shell, under the appellation of _N. musica_, he did not admit a single one of the cited figures as illustrative. N. GLAUCINA. _N._ edentula convexa, umbilico simplici semiclauso gibboso dicolore. None of the deceptive figures were at first referred to, but had been added at subsequent period; and that of Rumphius again erased. _N. luteola_ was the intended name. N. ALBUMEN. _N._ edentula subrotunda, umbilico teretinsculo.