46 HENRY CLIFDEN BURNUP. 



eiglit shells examined the distinction is not quite so fvilly 

 maintained as in the other five, as the shells are long-er with- 

 out material corresponding* increase in width, and the form 

 therefore is less elliptical ; but the other distinctions remain. 

 The number of whorls increases with the additional height to 

 6^, my largest specimen of E. farquhari, typical, having 

 5| whorls. 



Var. avena n. PI. lY, figs. 28, 29, 30, 81. 



Shell small, cylindrical, with rounded apex, rimate and 

 most narrowly perforate, thin vitreous, whitish, transparent 

 and shining : whorls 6 j, only slightly convex, and, excepting 

 for a few irregularly scattered faint transverse scratches, 

 smooth all over, except the last half whorl, which is sculptured 

 with regular distinct transverse rib-strias continued round the 

 base ; suture rather shallow ; aperture somewhat broadly 

 triangularly auriform, with well thickened slightly expanded 

 and reflexed white porcellanous peristome, and furnished with 

 the following processes : a prominent blade-like, in-running 

 parietal plait, a massive, rounded, undivided labral tooth, a 

 small internal basal tooth, a most inconspicuous, broad, very 

 slightly raised tooth on, and parallel to, the columellar lip, 

 and a deep-seated, rounded, flatfish, scoop-shaped columellar 

 plait. 



Height 3-21, width 1-30 mm. 



Hab. — Maritzburg; also Pinetown and Durban (Burnup), 

 Nottingham Road (Taynton), all in Natal. 



The axial perforation rises from a position so deep in the 

 rima that it is difficult to detect, but the branch passing into 

 the deep-seated columellar plait is more easily seen : depres- 

 sions behind the lips correspond with the labral, basal, and 

 columellar teeth. 



This variety differs from E. farquhari, typical, in its 

 generally greater size, its more cylindrical form with nearly 

 parallel sides, less ventricose whorls, shallower suture, absence 

 of defined sculpture except on the last half whorl, less 

 expanded yet more thickened peristome, more open aperture 



