ON SOUTH AFRICAN ENNEiE. 49 



tlie District of Polela, Mr. C. W. Alexander has collected a 

 single specimen Avhile these notes were being written. It 

 is a good deal smaller than any of the specimens from the 

 other localities, but in form is exactly proportionate to the 

 shell here figured, and is identical in all detail. 



The locality Gowie's Kloof, Grahamstown, cited in the 

 same place, is erroneous, and should be expunged. The 

 shell on which the locality was cited is not darglensis, but 

 is Ennea ponsonbyi n.sp., described hereafter, p. 78. 



The following are the dimensions of such shells as I have 

 measured, besides the type : 



From Inhluzani: height X width, 2-69 x 1-25, 2-62 xM8, 

 2-54 X MS, 2-53 x M9 (tig. 32), 2-46 x 1-12. From Bulwer : 

 2-23 X 1-07 mm. 



The first and second on the list are picked, as appearing to 

 be the largest, from a series of about seventy specimens. 



Var. illovoensis ii. PI. IV, figs. 33, 34, 35. 



Shell small, rimate and narrowly perforate, elongate ovate- 

 cylindrical, thin, glossy, transparent, whorls 6j, rather 

 convex, almost smooth except the last half-whorl and the 

 base which are regularly rib-striate; suture rather shallow; 

 aperture rather quadrate and somewhat oblique, with white, 

 thickened and reflexed peristome armed with the following 

 plaits and teeth : A broad blade-like, squarish parietal 

 plait, a deeply cleft labral tooth, a small, sharp in-running 

 basal tooth-like plait, and a complicated two-pointed colu- 

 mellar plait with detail as in darglensis, typical. 



Height 2-92, width 1-37 mm. 



Hab. — Ntimbankulu, Mid-lllovo (Burnup). 



In form and arrangement of the armature of the aperture, 

 this variety almost coincides with the type. The upper 

 branch of the labral tooth in the variety is squarish at the 

 end instead of pointed, and the complex columellar process is 

 situate a little lower; but, though these features seem constant 

 in the specimens examined, they are but trifling divergencies 

 such as might be looked for in individuals of the same form. 

 VOL. 3, PART 1 . 4 



