Reference List of South African Non-marine Mollusca. 61 
have wrongly figured, prior to their description, under one of the 
older names. In giving all these localities, however, it is my hope 
that future collectors, on finding a certain shell in a certain neigh- 
bourhood, will at least have some guide as to the known species 
with which their specimens may be compared. 
No single map is yet published which includes all the localities 
mentioned, but to simplify matters as far as possible I have given 
the province in which each is situated, and subdivided the larger or 
more intricate districts. Thus, German South-West Africa is divided 
into Ovampoland (north), Damaraland (or Hereroland) (central), and 
Great Namaland (south), Little Namaland is in the Cape of Good 
Hope Province, just south of the mouth of the Orange, and Griqua- 
land West is that portion of the colony north of the same river. 
Cape Peninsula, where specially mentioned, refers to the small, but 
conchologically rich, district between Cape Town and Cape Point. 
British Bechuanaland, on the north, is divided from Bechuana- 
land by a line nearly following the direction of the Molopo River. 
Lorenzo Marques represents the whole Portuguese territory in East 
Africa south of the Zambesi, as distinct from Mozambique to its 
north ; while the Northern Transvaal comprises the district north of 
Pretoria. 
An effort has been made to state where the type of each species is 
preserved, and through the kindness of the custodians of the collec- 
tions mentioned, I have been able to locate about nine-tenths of the 
total number. In cases where the type cannot be traced or was 
never specified, the whereabouts of original specimens has, when 
possible, been given. 
For the information of local students, the letters S.A.M. are affixed 
to the names of species contained in the collection of the South 
African Museum. I may add that the magnificent Burnup Collec- 
tion is exhibited in the Natal Government Museum, Pietermaritz- 
burg, while there are good collections of non-marine mollusca at 
Grahamstown and Port Elizabeth, and a smaller one at Kimberley. 
It only remains for me to express my most grateful thanks to the 
many kind friends who. have been ever ready to assist me in the 
many difficulties which have cropped up in the course of even 
the present unassuming work. It is almost impossible to mention 
all by name, and I must therefore confine myself on this page to 
acknowledging my extreme indebtedness to Messrs. J. H. Ponsonby 
and H.C. Burnup for an enormous amount of invaluable help and 
advice, to which are due, in great measure, any merits which may 
eventually be found in the ensuing pages. 
