ON SOUTH AFRICAN ENNE.E. 39 



In the bush skirting the beach near the mouth of the 

 Tongaat Eiver, the only place near the coast where I have 

 met with this species, is found a form, quite typical except 

 that it is rather small and has the peristome rather more 

 thickened, and the processes yerj strongly developed. Two 

 examples of this form are shown in figs. 9 and 10. 



Next comes the typical form from Maritzburg at an eleva- 

 tion of a little over 2000 feet (fig. 7). 



At Dargle, at an altitude of about 3700 feet, the shells are 

 barely larger than those at Tongaat, and the lower tooth on 

 the columellar lip has deteriorated into a mere inconspicuous 

 callosity, as seen in figs. 11 and 12. 



The next stage is seen in the shells found at Fort Notting- 

 ham and Curry's Post (altitude about 4000 feet), in which the 

 height is rather greater, and the lower tooth of the columellar 

 lip is suppressed altogether. I think this form may con- 

 veniently be regarded as a new variety, differentiated as 

 follows. 



Yar. manca n. PI. Ill, figs. 13, 14. 

 Shell like el lip tic a, typical, but generally rather larger, 

 comparatively narrower, and without the lower tooth on 

 the columellar lip. 



Height 3*76, width 1*74 mm. 



Hab. — Fort Nottingham; also Curry's Post, Natal (A. J. 

 Taynton). 



In a few specimens from these localities an almost imper- 

 ceptible callosity may be detected in the position of the lower 

 tooth of the columellar lip of elliptica, typical; but in by 

 far the greater number there is no trace of it. There are 

 also to be found in some specimens, especially those from 

 Curry's Post, slight traces of the sculpture distinguishing the 

 variety caelata, hereafter described, for the most part only 

 infrasutural, but occasionally extending across the whorls. 

 The Curry's Post specimens are rather wider than those from 

 Fort Nottingham. 



Yet another form, varying from the type in respects not 



