TRUNCATELLINA OF SOUTH AFRICA. 93 



with greatest width at the fourth whorl ; sutures rather deeply 

 impressed, apex very obtuse ; whorls 5y 2 , very convex, closely 

 transversely striate, excepting the first iy 2 , which are smooth, 

 the last compressed round the umbilical region. Aperture 

 nearly erect, rounded, nearly y 3 the height of the shell. Peri- 

 stome slightly thickened and reflexed, more so at the colu- 

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

 labrum [outer lip] slightly straightened about the middle and 

 much receding towards the base. Columella arcuate. The 

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

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

 and 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- 

 dentata). 



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. 

 Jaminia pretoriensis (Melv. & Pons.), CONNOLLY, Ann. S. 

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

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

 1908, p. 73, pi. 1, f. 5, 6. Pupa intradentata BURNUP, Ann. 

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



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

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

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

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

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

 the postcolumellar and parietal plaits. As compared with 

 dysorata (of which intradentata appears in the Survey as a 

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

 more loosely coiled, with more ventricose whorls and deeper 

 sutures, 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). 



