82 Messrs. J. C. Melvill and J. H. Ponsonby on 



There can be no doubt that this is identical witli a form of 

 which Mr. Burnup had drawn up a description under the 

 name inconspicua, and \ve take leave to introduce it here, as 

 being more accurate and exliaustive than the original : — 



" Shell very small, rimate, subeylindrical, elongate-oval, 

 very thin, subhyaline, shining, brown ; spire slightly convexly 

 narrowing upward above the fifth whorl, sutures impressed, 

 apex obtuse ; whorls 1^, convex, nearly smooth, faintly 

 striate, with very fine microscopic, irregular, transverse 

 cuticles, becoming stronger towards the base, last whorl not 

 much impressed around the umbilical region ; aperture 

 slightly oblique, rounded, nearly I of the altitude of the 

 shell ; peristome reflexed, especially at the columellar 

 margin, slightly thickened, connected by a thin callus, pale, 

 untoothed, straightened near the middle of the labrum ; 

 columella arcuate. 



" Alt. 2-05, lat. 0-72 mm. (maj.). 

 „ 1-94, „ 0-77 „ (inin.).^ 



" Hah. Dargle, Natal (Miss Livingstoti) ; Grahamstown, 

 Cape Colony (Farquhar), 



" A very delicate, minute, and rather characterless shell, 

 long and narrow, but varying a good deal in size and propor- 

 tions of height to width. It is so thin and transparent that 

 in a side light the whole range of the columella can be 

 viewed. 



" Its nearest ally among South-African shells appears to be 

 P. pentheri, Sturany, whose sculpture is very similar, but in 

 form quite distinct, more conical, and with flatter whorls 

 and shallower sutures. The rima or umbilical slit is, more- 

 over, deeper. 



"It is also comparable with P. h'vingstonce {iota), much 

 resembling it in form, though it narrows above more gradu- 

 ally. But the comparatively coarser sculpture and more 

 angular aperture readily distinguish it." [H. C. B.) 



20. Pupa tahularis, M. & P. (PI. II. fig. 22.) 



Pupa tabularis, Melv. & Pons. Ann. & Mag. Nat. Hist. ser. 6, vol. xi. 

 (1893) p. 20, pi. iii. fig. 3. 



A new figure is very necessary, the conspicuous parietal 

 tooth not having been done justice to. A certain bulimoid 

 resemblance exists in the character of the whitish reflexed 

 peristome. P. dadion, Bens., is its nearest ally. 



Alt. 3'93 mm. (maj.). 

 „ 3-4 „ (min.). 



Hah. Near Cape Town {R. M. Lightfoot). 



