94 TBUNCATELLINA OF SOUTH AFRICA. 



The type of P. pretoriensis was reported to Mr. Burnup as 

 smashed, so that no comparison of mtradentata could be made 

 with it; as nothing was said in the original description of a 

 tooth, the two shells were naturally supposed to be different. 

 After the publication of intradentata, Connolly found that 

 enough remained of the type of pretoriensis to leave no doubt 

 of its identity with intradentata. 



The palatal tooth is often visible in a direct face view, as 

 in the type and fig. 2 ; in other shells it is somewhat further 

 in, not visible from in front, but seen by turning the shell as 

 in fig. 1. There is also a columellar tubercle, rather small, 

 dorsal in position (fig. 3), which has heretofore been over- 

 looked, yet it is constantly present in the specimens at hand. 

 It may be seen imperfectly in an obliquely basal view in the 

 mouth. Two specimens figured measure : 



Length 1.4, diam. 0.74 mm. ; 5% whorls. 



Length 1.6 mm. ; 5% whorls. 



26. TRUNCATELLINA DYSORATA (Melv. & Pons.). PL 10, fig. 4. 



"Shell minute, umbilicate, shortly cylindrical, thin, shin- 

 ing, horn-colored ; spire cylindrical, being almost equally wide 

 at the third, fourth, and fifth whorls ; sutures impressed, apex 

 rounded; whorls about 5%, convex, deeply closely trans- 

 versely striate, excepting the apical whorls, which are smooth, 

 the last rounded below and compressed about the umbilicus; 

 aperture erect, somewhat quadrate, rounded above and below, 

 exceeding y 3 the height of the shell. Peristome slightly thick- 

 ened and expanded, widely so at the columellar margin (which 

 in the type is longitudinally chipped), paler than the rest of 

 the shell, with labrum [outer lip] slightly bent inwards about 

 the middle and columella nearly straight. There are no aper- 

 tural processes. Height 1.57, width 0.9 mm." (Burnup). 



Cape of Good Hope: Griqualand East. Type in coll. E. 

 R. Sykes. 



Pupa dysorata MELVILL & PONSONBY, Ann. Mag. N. H. (6), 

 xi, Jan. 1893, p. 20, pi. 3, f. 4; xii, 1893, p. 111. (8), i, 1908, 

 p. 73, pi. 1, f. 4. BURNUP, Ann. Mag. (8), vii, 1911, p. 403. 

 Pupa dysorota M. & P., STURANY, Cat. S.-A. Moll., Denk- 



