TRUNCATELLINA OP SOUTH AFRICA. 



93 



ith greatest width, at the fourth, whorl ; sutures rather deeply 

 ipressed, apex very obtuse ; whorls 5%, very convex, closely 

 'ansversely striate, excepting the first 1^2? which are smooth, 

 last compressed round the umbilical region. Aperture 

 trly erect, rounded, nearly % the height of the shell. Peri- 

 >me slightly thickened and reflexed, more so at the colu- 

 lellar margin, scarcely paler than the rest of the shell, with 

 ibrurn. [outer lip] slightly straightened about the middle and 

 tuch receding towards the base. Columella arcuate. The 

 ily tooth conspicuous, white, rounded, and remote, is situate 

 ide, about midway between the last suture and the base, 

 id about half a turn from the labrum [or outer lip]. 

 "Height 1.47, width 0.79 mm. 

 "Height 1.33, width 0.78 mm. 

 "Largest: height 1.51, width 0.80 mm. 

 "Smallest: height 1.32, width 0.75 mm." (Burnup, intra- 

 mtata). 



Transvaal: Pretoria, type loc., and District (Farquhar, 

 Connolly) . 



Pupa pretoriensis MELVILL & PONSONBY, Ann. Mag. N. H. 

 ;6), xi, Jan. 1893, p. 21, pi. 3, f. 8; (8), i, Jan. 1908, p. 81. 

 r aminia pretoriensis (Melv. & Pons.), CONNOLLY, Ann. S. 

 .fr. Mus., xi, 1912, p. 183. Pupa dysorata M. & P. var. in- 

 mtata Burnup, MELV. & PONS., Ann. Mag. N. H. (8), i, 

 )8, p. 73, pi. 1, f. 5, 6. Pupa intradentata BURNUP, Ann. 



(8), vii, 1911, p. 405. 



; This is the smallest of the South- African group examined 

 )y me, and is of a paler color than most. As compared with 

 perplexa, which seems to be its nearest ally, it is smaller, 

 ioother, paler and less cylindrical, is only rimate instead of 

 ibilicate, has the peristome less reflexed, and is destitute of 

 postcolumellar and parietal plaits. As compared with 

 (sorata (of which intradentata appears in the Survey as a 

 variety), it is smaller, more slender, paler, less cylindrical, 

 lore loosely coiled, with more ventricose whorls and deeper 

 itures, and is rimate instead of umbilicate; the aperture is 

 smaller and rounder, receding more at the base, and is fur- 

 nished with a tooth in the gullet, not found in dysorata" 

 (Burnup). 



