edais Jee tO ues. ectio 
Since the publication of ‘Marine Shells of South 
Africa”’ in 1892, a considerable number of additional species 
has been discovered, some well known as inhabiting other 
seas, and others new toscience. Descriptions without figures 
of some of these were published in the “ Journal of Conchol- 
ogy,’ 1894. The time has now come for the publication, in 
the form of an appendix to the original work, of descriptions of 
the new species, with figures of those hitherto un figured, 
together with a list (as complete as possible) of all the species 
found up to date in South African Waters, and not included 
in my work of 1892, giving references to figures in well-known 
works, I include a list of emendations referring to the pages 
of the Ist Volume, altering some of the generic names in ac- 
cordance with the nomenclature now in use. These changes 
are somewhat inconvenient, but they are rendered necessary 
by the law of priority. The number of additional South 
African Marine Mollusca enumerated in the present work is 
311, bringing up the grand total to 1051. The greater num- 
ber of these have come under my observation, but some are 
quoted on the authority of Krauss, Gould, and other authors, 
and are unknown tome. The three plates in the present work 
following the five originally published, and numbered accord- 
ingly, vi., vii., viii., give 74 figures of 56 species. 
Again I have pleasure in tendering my grateful acknow- 
ledgments to friends resident in South Africa, after whom I 
have named some of the species, and particularly to John 
H. Ponsonby, Esq., for the material which has enabled me 
to make this contribution to South African Conchology. 
G. B. SOWERBY. 
