LAURIA. 87 



duced, sides somewhat convex, apex obtusely rounded. Whorls 

 5, convex, regularly increasing, first li/^ smooth, next II/2 

 very closely, microscopically, transversely and slightly 

 obliquely striate in the lines of growth, last 2 sculptured with 

 regular, flattish, somewhat distant, slightly oblique striae, 

 darker than the intervals between them, there being about 12 

 and 13 visible on the 4th and 5th whorls respectively ; suture 

 simple, well defined. Aperture quadrate, rounded at base, 

 peristome glossy-white, expanded and reflexed, outer lip 

 receding only very slightly in profile, columella erect, margin 

 broadly triangularly reflexed, callus thin, but well marked 

 and continuous; the only dental process is an inrunning 

 parietal plait, inclined downwards to the right, three-quarters 

 of the distance from the columella to the outer lip, but there 

 is a slight inflation of the inner margin one-third way down 

 the outer lip and another, inset and hardly noticeable, half- 

 way up the columella. Long. 3.3, lat. 2.1 ; apert. alt. 1.3, lat. 

 0.8; last whorl 2.0 mm. (Connolly). 



Abyssinia: Serpent Lake, "Wouramboulchi (Omer-Cooper). 



Lauria wouramboulchiensis Connoll"s^, Proc. Zool. Soc. 

 London, 1928, p. 168, pi. 1, f. 6. 



' ' The shell is smoother and squatter than L. bruguierei and 

 comparatively wider, while the dark transverse stripes impart 

 to it a very distinctive appearance. I find nothing resembling 

 it closely in the fauna of continental Africa, but from the 

 respective figures it must be closely allied to L. bourhonicensis 

 Pilsb. The peristome, however, in the Abyssinian race is 

 white and somewhat broadly reflexed, instead of brown and 

 very narrowly so, as emphasized in the case of bourbonicensis, 

 which, too, should have stronger sculpture. It has not been 

 proved hitherto that any of the South or Central African 

 Pupillidae are actually conspecific with those of adjacent 

 lands, and even if wouramboulchiensis eventually proves to be 

 merely a variety, it will be entitled to full varietal rank on 

 account of its remarkable striped coloration, 



I have not been able to examine the young stage, but it 

 appears hardly likely to belong to a genus other than Lauria." 



