Notes on South African Non-marine Mollusca. 183 



surprising that this species is not now more widely diffused than 

 is actually the case. 



V 



It is pretty general all over the cultivated part of the Cape 

 Peninsula, without, however, encroaching much upon the wilder 

 districts, and it is also recorded from Stellenbosch, Somerset East and 

 Somerset West. The only specimen which I have seen from Bula- 

 wayo has the appearance of having travelled there dead in a flower- 

 pot, but Miss Wilman informs me that the species has been observed 

 within the last two years at Kimberley, where it is not infrequent in 

 one or two gardens. 



POLITA DRAPARNAUDI (Beck). 



Found in nursery gardens by W. J. Oakley about 1908 at Ronde- 

 bosch, and by myself in 1909 at Kenilworth, C.P., where it is associated 

 with Z. arboreus (Say), but is confined to one or two greenhouses, 

 whereas arboreus is as happy in the open as under glass. 



The Kenilworth examples of draparnaudi grow to a large size, my 

 finest measuring 16 x 14 mm. in diameter. 



The animal has been examined and identified by the Eev. E. W. 

 Bo well. 



ZONITOIDES ARBOREUS (Say). 



Shells apparently inseparable from this widespread American species 

 have been collected in nursery gardens at Kenilworth ; the Botanical 

 Gardens, Pietermaritzburg ; the Zoological Gardens, Pretoria ; and at 

 Grahamstown, Queenstown, Kiugwilliamstown and Port Elizabeth, to 

 all of which localities it may easily have been transported through 

 commerce. 



Of course the presence in the Sub-continent of Zonitoides africanus 

 Bttg. and Z. ciipido M. & P. renders it by no means improbable that 

 other endemic species of this Genus exist therein, and it is really far 

 more remarkable that shells from so many diverse localities should be 

 inseparable from arboreus than if they belonged to distinct indigenous 

 species. 



KALIELLA SIGURENSIS Godwin-Austen. 



Dautzenberg and Germain * consider the above to be synonymous 

 with K. barraJcporensis (Pfr.). Whichever name it should bear, this 

 little shell is abundant in many wooded districts up the eastern side 

 of the Continent where it has certainly not been spread by human 

 agency. 



Its distribution south of the Zambesi includes the Botanical Gardens, 

 * Eev. Zool. Africaine, 1914, iv, p. 17. 



