the South- African Stenogyrinse. 263 



Shell 13'8x4 - 3, aperture 3*5 x 1*7, last whorl 6*5 mm. 



Hab. Natal, O.R.C., Junction Station {Connolly, six 

 specimens). 



The species is peculiarly subject to dimorphism, other 

 specimens measuring : — 



A rather short thick species, with a very blunt apex, 

 differing from all others of its size in the entire lack of any 

 attempt at perforation. The fact that the smallest specimen 

 measured above contains eggs supports the idea that the 

 larger ones are at least almost mature. 



14. Euonyma varia, sp. u. (PI. VI. figs. 5, 6, 7.) 



Shell elongate, narrow, turriform, rimate, pale yellowish 

 olivaceous, thin, moderately glossy and transparent. Spire 

 produced, acute, apex narrowly rounded. Whorls 10^, 

 slightly convex, more so just below the suture; gradually 

 and regularly increasing; the first two smooth, remainder 

 covered with numberless very fine, faint, regular, curved, 

 close-set stria?, imparting a slight silky gloss to the shell. 

 Suture somewhat impressed. Aperture ovate, bluntly rounded 

 at base. Peristome thin, simple. Outer lip a little swollen 

 and then incurved, rather sharply arched forward to about 

 1^ mm. below the suture, and then noticeably receding in an 

 almost straight line to the base. Columella nearly straight, 

 margin narrowly triangularly reflexed. Callus none. 



Shell 17'0 x 4*1, aperture 4'2x 1-8, last whorl (r6 mm. 



Hob. TEANSVAAL, Pienaars Poort ; Pretoria District 

 {Connolly); Potchefstroom {Miss Cachet); Zoutpansberg 

 {Cregoe). 



A widely distributed species, to be found in many museum 

 and private collections. Extreme forms differ very con- 

 siderably in contour. The type, from Pienaars Poort, is 

 about intermediate, with an evenly tapering spire and mode- 

 rate apex. In a more slender form from Zwart Kop the 

 apical whorls are finer and narrower, giving a more tapering 

 and often slightly crooked appearance to the spire ; in a 

 coarser form the apex is blunter and the spire approaches 

 E. turriformis in contour. The gloss and transparency is 



